Frederick Carl Groos
Male
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Overview

Family
Wife: Florence Alice Clarkson 1886–1964 Unconfirmed evidence: show why
Unconfirmed evidence: show why
- Son: Clarkson Groos 1908–1986
Likely evidence: show why
Why: The 1920 census lists Florence Groos, 34, at San Antonio with her sons Clarkson 11, Frederick 8 and Gus 6. The father is not in that household; the brothers' surname, the name Frederick Carl Jr. and the register's grouping of the three point to Frederick Carl Groos. Likely rather than Confirmed until a birth record is read.
Records:
- 1920 U.S. census, San Antonio Ward 8, Bexar Co., Tex., Garden St., ED 97, sheet 15A: Florence Groos, 34, head; sons Clarkson 11, Frederick 8, Gus 6 (view at Ancestry.com)
- Register of Commissioned and Warrant Officers of the United States Naval Reserve, April 1949, p. 391: Groos, Gus J. Jr., LCDR (view at Internet Archive)
Review: assessed 10-20-2026; evidence: Index or transcription examined; Image examined.
- Son: Gus Julius Groos Jr 1913–2001
Unconfirmed evidence: show why
- Son: Frederick Carl Groos Jr. 1911–1998
Likely evidence: show why
Why: The 1920 census lists Florence Groos, 34, at San Antonio with her sons Clarkson 11, Frederick 8 and Gus 6. The father is not in that household; the brothers' surname, the name Frederick Carl Jr. and the register's grouping of the three point to Frederick Carl Groos. Likely rather than Confirmed until a birth record is read.
Records:
- 1920 U.S. census, San Antonio Ward 8, Bexar Co., Tex., Garden St., ED 97, sheet 15A: Florence Groos, 34, head; sons Clarkson 11, Frederick 8, Gus 6 (view at Ancestry.com)
- Register of Commissioned and Warrant Officers of the United States Naval Reserve, April 1949, p. 391: Groos, Gus J. Jr., LCDR (view at Internet Archive)
Review: assessed 10-20-2026; evidence: Index or transcription examined; Image examined.
Life events
| Born | Image: Texas, U.S., Birth Certificates, 1903-1932 |
|---|---|
| Died | No death date is recorded here. The site classifies this person as deceased from the dated records; no death record is cited. |
| Marriage | 1907, San Antonio, Bexar, Texas, USA, with Florence Alice Clarkson 1886–1964 |
Newspapers
Cited, with no image here
- Fort Worth Star-Telegram, 9 Sep 1933, p. 2 ("Retired Cotton Broker Expires") and San Antonio Light 8 Sep 1933, p. 32: "Mrs. S. M. Leftwich of Dallas"; San Antonio Light, 25 Apr 1922 (obituary of Mrs. W. B. Clarkson): "Mrs. S. M. Lepturch" [reading uncertain]; San Antonio Express and News, 1 Nov 1960 ("Mrs. S. M. Leftwich, Dallas, Texas"). https://www.newspapers.com/article/fort-worth-star-teleg Newspaper or record reference; read it at the archive or publisher.
Record images
2 record images to view here. View them larger, one at a time.
Sources
- Fort Worth Star-Telegram, 9 Sep 1933, p. 2 ("Retired Cotton Broker Expires") and San Antonio Light 8 Sep 1933, p. 32: "Mrs. S. M. Leftwich of Dallas"; San Antonio Light, 25 Apr 1922 (obituary of Mrs. W. B. Clarkson): "Mrs. S. M. Lepturch" [reading uncertain]; San Antonio Express and News, 1 Nov 1960 ("Mrs. S. M. Leftwich, Dallas, Texas"). https://www.newspapers.com/article/fort-worth-star-teleg Newspapers Citation only Marriage
- Texas, U.S., Birth Certificates, 1903-1932 Birth, marriage and death records Viewable scan Birth
Texas Department of State Health Services; Austin, TX; Texas, U.S., Birth Certificates, 1903-1932
Research sources
- 1920 U.S. census, San Antonio Ward 8, Bexar Co., Tex., Garden St., ED 97, sheet 15A: Florence Groos, 34, head; sons Clarkson 11, Frederick 8, Gus 6 Census view at Ancestry.com
- Register of Commissioned and Warrant Officers of the United States Naval Reserve, April 1949, p. 391: Groos, Gus J. Jr., LCDR Military view at Internet Archive
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