The Proeger Family · Generation 4 — Earl's great-grandparents

Louise Rose

Great-grandmother · b. c.1856 · alive 1920

Louise (Mendonça) Rose, from the Azores — outdoors, c. 1925–1936 — from the Patricia Collins collection
Photograph, c. 1925-1936

Louise Rose

Azores, PortugalProbable

Great-grandmother · b. c.1856 · d. probably 5 July 1936

Born
c.1855–56, Portugal
Died
5 July 1936
Parents
Francisco Dutra de Mendonça & Francisca Eugénia
Married
Antone Rose
Children
Mildred A. Rose
Sources
13
Images
2

Research status

Evidence: The 1900, 1910 and 1920 censuses, five records of her maiden name, and a 1936 California Death Index entry. Weak or missing: Her death rests on one index entry filed under Rosa, not Rose, with no certificate; her baptism is not found, and her parents come from a family tree. Not yet confirmed. Know more? Confirm or correct this →

Life in the order the records give it

Photograph1925
🆕 Photograph Confirmed: the only known photograph of her, outdoors in a garden, about 1925–1936, from the collection of her great-granddaughter Patricia (Proeger) Collins, who identified it on 1 October 2026: “Great Grandmother Rose. From the Azore island.” Family testimony; the print itself is unlabelled. See Photos below.
Birth1855
Born c.1855–56, Portugal
the Azores, per the 1920 census S314; island not recorded — aged 44 in the 1900 census S55 and 54 in 1910 S201; the 1900 birth-year column contradicts its own age column, and two censuses agree on the age S12
Death1936
🆕 Died, probably, 5 July 1936, California Probable confirm or correct →: the California Death Index has “Rosa, Luiza G. A.”, aged 80, file 40139 S624. The name fits her maiden name, Louise da G. de Mendonça, and the age fits a birth about 1856. It is filed under Rosa, not Rose, and the certificate has not been ordered, so it stays probable. The date “1953” is withdrawn: it came from a user tree S12 with no record behind it. added 26 September 2026. She is alive in January 1920 as head of her own household at Washington Township S314.

Family parents, marriages, children, siblings

Children1888
Son: Joseph Rose (b. Oct 1888, California) Confirmed S55
Children1898
Mother of Mildred A. Rose and her twin brother Edward (both b. July 1898)
listed as Wife, age 44, in the 1900 census household of Antone Rose S55
Marriage1879
Married Antone Rose in 1879
indexed 3 Jan 1879 in Alameda County S315; the ceremony date is unconfirmed S55
Children1900
Nine children born, eight living in 1900: Rose (Nov 1879), Louise (June 1885), Antone Jr (June 1887), Joseph (Oct 1888), Frank (May 1891), the twins Edward and Mildred (July 1898), and Helen (Oct 1899) S55
Parents1879
Maiden name Mendonça Confirmed
five records name her so: the 1879 Alameda marriage index, "L. da G. de Mendonca" S315; Joseph's 1913 marriage, "Louisa Mendosa" S317; Helen's 1918 marriage, "Louise Mendonca" S319, and Helen's NUMIDENT, "Louisa Mendonca" S320; and Mildred's 1960 death index entry S316. Frank's 1914 marriage gives "Louise Silver" S318. The fuller form "Dutra de Mendonça" Probable confirm or correct → comes from a FamilySearch tree S322.
Parents1847
Parents Probable confirm or correct → Francisco Dutra de Mendonça and Francisca Eugénia of Feteira, Faial, the Azores. A FamilySearch tree places her in their family S322, and the baptisms of two of its children, Francisca (1847) and Manoel (1850), are indexed at Horta S321. Her own 1856 baptism has not been found, so the link is not yet proven.

Photos & documents 2 photos · 0 documents

Photos (2)
Louise (Mendonça) Rose, from the Azores — outdoors, c. 1925–1936 — from the Patricia Collins collection
Louise (Mendonça) Rose, from the Azores — outdoors, c. 1925–1936 — from the Patricia Collins collection c. 1925-1936 Confirmed Download · → card
Enhanced (AI-assisted, non-generative): glare reduced, cleaned and upscaled. Louise (Mendonça) Rose, from the Azores — outdoors, c. 1925–1936 — from the Patricia Collins collection
Enhanced (AI-assisted, non-generative): glare reduced, cleaned and upscaled. Louise (Mendonça) Rose, from the Azores — outdoors, c. 1925–1936 — from the Patricia Collins collection c. 1925-1936 AI-assisted enhancement of the original photo Download · Original photo · → card

In the record Generation 4 — Earl's great-grandparents

Louise Rose · Sources

Citations

Sources cited on this card

13 of the record's sources are cited here. The numbering is the record's own; the full list, with where else each is cited, is at Sources.

  1. S12FamilySearch Tree public pages, no login required for deceased persons — William Harry Proeger KC1N-799, Aileane Marie Silva L9GZ-NDP, William Leonard Proeger L7GK-VBK, Queen Anne Proeger LHQW-W1L — ancestors.familysearch.org. User-contributed; event lists are treated as PROBABLE unless separately sourced.
  2. S55US Census, 1900 — Washington Township, ED 405, Alameda County; household 24, sheet 1B line 93. FamilySearch ark:/61903/1:1:M9PW-6X9. Antone Rose, Head, born February 1840, Portugal, arrival 1870, married 21 years, his own parents both Portugal-born; Louise Rose, Wife, age 44, Portugal (her birth-year column reads 1865, contradicting her own age); Mildred Rose, Daughter, born July 1898, California. The same township as the Silvas, one enumeration district over. ⚠️ These records say "Portugal," not "Azores," and this page does not upgrade them to match the Silvas. "Rose" is the standard Anglicisation of Portuguese Rosa / Roza. 🔑 SUPPLEMENT, 22 September 2026 — the same page re-served (rid 36140745) and read at full resolution. The children are named: Rose (Nov 1879, already married), Louise (June 1885), Antone (June 1887), Joseph (Oct 1888), Frank (May 1891), Edward and Mildred (July 1898), bracketed as twins, and Helen (Oct 1899). ⚠ The mother's age column (44) and birth-year column disagree; the age governs, agreeing with S201, so she was born c.1855–56.
  3. S2011910 U.S. Federal Census — Antone Rose household, Washington Township, Alameda County, California. Ancestry record 938582; ED 157, sheet 4A. Read from the image at full resolution, 22 September 2026. Antone, 62, and Louisa J., 54, immigrated 1880, own the farm free; Antone Jr, Joe and Frank next door. ⚠ Louisa J.'s 54 and the 1900 sheet's age 44 both disagree with the 1865 birth year read from S55; with the 1900 age of 44 they place her birth c.1855–56, and the page now says so. Where Edward, Mildred and Helen are entered in 1910 is also under review.
  4. S3141920 U.S. Federal Census — Louisa A. Rose household, Washington Township, Alameda County, California. Roll T625_92, ED 212, page 5A; Ancestry collection 6061, record 3288770. Read from the index, 23 September 2026; the image has not yet been read. Louisa A. Rose, Head; Edward Rose, son, 21; Antone Rose, son, 33, widowed; Helen Farrel, daughter, 20, and Wm Farrel, son-in-law, 20. Parents' birthplace Azores. Antone Sr is absent, so he died between April 1910 and January 1920. Louisa is indexed at age 80, against 44 in 1900 and 54 in 1910; read the image before using that age.
  5. S315Alameda County, California, Index to Marriage Certificates No. 2 — “R” page. Ancestry record 31576, on disk. “Rosa, A. da × L. da G. de Mendonca, Jany 3 79”, Book F[?] p. 225. An index, initials only; the certificate in Book F p. 225 would give her full name. A FamilySearch tree's “Louisa Dagloria Dutra de Mendonça” and 26 Jan 1879 are not supported by this entry beyond “da G.”; “Dutra” is unsupported.
  6. S316California Death Index, 1940–1997 — Mildred A Springer. FamilySearch record VPWY-81H, read 23 September 2026. Born 26 July 1898, California; died 7 October 1960, Alameda County; mother's maiden name Mendonca. An index; the certificate has not been seen. The birth date matches the July 1898 twins entry of the 1900 census (S55) and the mother's maiden name matches Louise Rose's, so this is Mildred A. Rose under a later married surname. FamilySearch also attaches this row, wrongly, to her mother as a death record.
  7. S317California, San Francisco County Records — marriage of Joseph Rose and Fanny Maria Waara (Lytala), 13 August 1913, San Francisco. FamilySearch XLXS-XZ9, QL4B-THYH, image 33SQ-G5NS-4SH, read 23 September 2026. Father “Antone Rose”, mother “Louisa Mendosa”.
  8. S318California, County Marriages — Frank James Rose (25) and Alda Marks (18), 2 November 1914, Los Angeles. FamilySearch K8Z1-YTB, image 3QS7-L93H-ZSH4, read 23 September 2026. Father “Antone Rose”, mother “Louise Silver”. “Silver” is the one record that does not give Mendonça; a variant or an error.
  9. S319California, San Francisco County Records — Helen Agnes Rose (18) and William Bernard Farrell (20), 30 November 1918, San Francisco. FamilySearch QL41-B5NX, image 33SQ-G56G-C25, read 23 September 2026. Father “Anthony Rose”, mother “Louise Mendonca”.
  10. S320U.S., Social Security NUMIDENT — Helen Rose. FamilySearch 6K4H-S77C, read 23 September 2026. Born 3 October 1899, Irvington, California; died 20 November 1995; father Anthony Rose, mother Louisa Mendonca.
  11. S321Portugal, Azores, Catholic Church Records — baptisms at Horta, Faial: Francisca, b. 31 May 1847, and Manoel, b. 6 November 1850. FamilySearch index 6JZK-KR1R, 6JZK-86V8, read 23 September 2026 (images restricted). Parents Francisco Dutra de Mendonça and Francisca Eugénia (do Coração de Jesus / da Roza) of Feteira; grandparents António Dutra de Mendonça × Luiza Feliciana Boleza and Manoel Francisco da Roza × Maria Felícia. These are two of the siblings a FamilySearch tree gives Louise. Her own 1856 baptism is not attached, so her place in this family is Probable. A Manuel Dutra Mendonca, b. Azores c.1851, died at Oakland on 28 January 1892 (FamilySearch HGHK-92PZ).
  12. S322FamilySearch Family Tree — Rose family profiles (Antone Rosa M81P-XYB, Louisa MC9V-JM3, Louise Elizabeth Rose KD12-DBD and their parents and siblings), read 23 September 2026. A user tree, not a record. Gives Louise Elizabeth Rose (b. 1885, Pleasanton) a marriage on 30 May 1907 at Pleasanton and a death on 28 November 1978 at Glendale. It also gives Antone a death in 1911, Louisa a death on 5 July 1936 and a marriage on 26 January 1879, none of them with a record behind it.
  13. S624California Death Index, 1905–1939 — “Rosa, Luiza G. A.” Ancestry collection 5187, record 1001358. Read 25 September 2026. Probable Died 5 July 1936, aged 80, file 40139. An index entry, not the certificate. It is filed under ROSA, not ROSE; the name fits Louise Rose's maiden name, Louise da G. de Mendonça, and the age fits her birth about 1856. The certificate has not been ordered.

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Compiled for the Proeger family

Living adults appear by name and relationship, with the year only: no full date of birth and no home town on any page that search engines index, and a living person’s own page is kept out of search engines. Minors appear by name only — no date of birth, no birth year, no age, no school, no place, no address, no other identifying detail. A minor may be named and may appear in a family photograph; nothing further about them is published. Where it is not established whether someone is an adult or a minor, the minor rule applies.

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