RL
Robert Lynch — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Marin, California
Our Model Tree links this Robert Lynch across the 1920 and 1930 US Censuses in Marin, California (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 28-person household.
Age 19
b. ~1911
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Marin, California |
| Surname | Lynch |
| Given Name | Robert G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Occupation | Pharmacist |
| Industry | Drug Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Pharmacist |
| Township / Ward | Mill Valley Town Pt Of |
| Est. Birth Year | ~1911 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
28 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Norma James | Daughter | — | 4 | ~1926 |
| Betty Cochran | Daughter | — | 6 | ~1924 |
| Jean Packard | Daughter | — | 21 | ~1909 |
| Fred Jones | Head | — | 65 | ~1865 |
| William Lynch | Other | — | 54 | ~1876 |
| Charles Crooker | Other | — | 65 | ~1865 |
| Julius Burbeck | Other | — | 59 | ~1871 |
| Edwin Alford | Other | — | 31 | ~1899 |
| Robert Cameron | Other | — | 37 | ~1893 |
| L Packard | Other | — | 66 | ~1864 |
| A James | Other | — | 41 | ~1889 |
| Carroll Cochran | Other | — | 38 | ~1892 |
| Robert Lynch | Son | — | 19 | ~1911 |
| John Lynch | Son | — | 17 | ~1913 |
| William Alford | Son | — | 2 | ~1928 |
| Richard Cochran | Son | — | 8 | ~1922 |
| David Cameron | Son | — | 5 | ~1925 |
| Howard Lynch | Son | — | 23 | ~1907 |
| William Lynch | Son | — | 25 | ~1905 |
| Robert Cameron | Son | — | 6 | ~1924 |
| Dolores James | Spouse | — | 27 | ~1903 |
| Kate Alford | Spouse | — | 25 | ~1905 |
| Annie Packard | Spouse | — | 61 | ~1869 |
| Leigh Cochran | Spouse | — | 34 | ~1896 |
| Grace Lynch | Spouse | — | 50 | ~1880 |
| Evelyn Cameron | Spouse | — | 25 | ~1905 |
| Abby Burbeck | Spouse | — | 57 | ~1873 |
| Anna Jones | Spouse | — | 60 | ~1870 |
Census Appearances
1920
Marin, California
Son, age 9
Marin, California · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | Robert Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Marin, California
Son, age 19
Marin, California · implied b. ~1911 — 28 household members
| Surname | Lynch |
| Given Name | Robert G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Pharmacist |
| Industry | Drug Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Robert Lynch across 2 US Census years (1920 and 1930) in Marin, California, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Lynch
Son · 1930 · age 19 · b. ~1911 · California
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Sibling
Norma James
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Cameron
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Lynch
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Cameron
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Alford
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Cochran
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Lynch
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Cochran
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Lynch
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Packard
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Marin, California
Open full size
1930 US Federal Census — Marin, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel177:0205)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert L Harder | 14 | Son | — | California |
| 2 | Patsy G Harder | 12 | Daughter | — | California |
| 3 | Charles H Hanson | 55 | Head | Claim Agent | Illinois |
| 4 | Luella A Hanson | 48 | Wife | Bookkeeper | Missouri |
| 5 | Harry H Hanson | 19 | Son | Janitor | Virginia |
| 6 | Paul A Hanson | 18 | Son | Runner | Virginia |
| 7 | Lucy A Hanson | 15 | Daughter | — | California |
| 8 | Roy E Hubber | 36 | Head | Conductor | Nebraska |
| 9 | Alice E Hubber | 36 | Wife | — | Oregon |
| 10 | Roy Hubber | 8 | Son | — | California |
| 11 | Ann M Hubber | 6 | Daughter | — | California |
| 12 | Hazel Pratt | 31 | Boarder | Writer | Kansas |
| 13 | Susan E Donnan | 53 | O | — | New York |
| 14 | Elizabeth Donnan | 31 | Daughter | Stenographer | New York |
| 15 | Harriett Donnan | 20 | Daughter | — | New York |
| 16 | Margaret Wilson | 28 | Boarder | Bookkeeper | Alaska |
| 17 | Lillian Logan | 29 | Boarder | Stenographer | Michigan |
| 18 | Marion W Whitney | 15 | Boarder | — | California |
| 19 | Lillian Wyman | 50 | R | Saleslady | Minnesota |
| 20 | Oscar Liebeskind | 70 | Head | Secretary | Minnesota |
| 21 | Fannie J Liebeskind | 66 | Wife | — | Germany |
| 22 | Oscar H Liebeskind | 30 | Son | Secretary | California |
| 23 | Fred G Jones | 65 | Head | Dealer | Wisconsin |
| 24 | Anna M Jones | 60 | Wife | — | Germany |
| 25 | Carroll T Cochran | 38 | R | Advertising Agt | California |
| 26 | Leigh F Cochran | 34 | Wife | — | California |
| 27 | Richard L Cochran | 8 | Son | — | California |
| 28 | Betty A Cochran | 6 | Daughter | — | California |
| 29 | William J Lynch | 54 | O | Salesman | England |
| 30 | Grace S Lynch | 50 | Wife | — | England |
| 31 | William J Lynch | 25 | Son | — | California |
| 32 | Howard E Lynch | 23 | Son | Fireman | California |
| 33 | Robert G Lynch THIS PERSON | 19 | Son | Pharmacist | California |
| 34 | John Lynch | 17 | Son | — | California |
| 35 | L Walter Packard | 66 | O | — | Scotland |
| 36 | Annie S Packard | 61 | Wife | Bookkeeper | England |
| 37 | Jean W Packard | 21 | Daughter | Stenographer | England |
| 38 | Julius H Burbeck | 59 | O | Representative | California |
| 39 | Abby F Burbeck | 57 | Wife | — | Canada English |
| 40 | Robert B Cameron | 37 | R | Accountant | Scotland |
| 41 | Evelyn Cameron | 25 | Wife | — | New Mexico |
| 42 | Robert Cameron | 6 | Son | — | California |
| 43 | David Cameron | 5 | Son | — | California |
| 44 | A Norman James | 41 | R | Salesman | Minnesota |
| 45 | Dolores James | 27 | Wife | — | New York |
| 46 | Norma J James | 4 | Daughter | — | New York |
| 47 | Edwin Alford | 31 | O | Salesman | Kansas |
| 48 | Kate Alford | 25 | Wife | — | Nebraska |
| 49 | William E Alford | 2 | Son | — | Nevada |
| 50 | Charles L Crooker | 65 | O | Accountant | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)