TM
Thomas Mullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Thomas Mullen across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 7-person household.
Age 19
b. ~1921
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Mullen |
| Given Name | Thomas P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | California |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Driver |
| Industry | Delivery |
| Class of Worker | PW |
| Hours Worked | 11 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Driver |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1921 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Eleanor Mullen | Daughter | — | 13 | ~1927 |
| Thomas Mullen | Son | — | 19 | ~1921 |
| Theresa Mullen | Daughter | — | 21 | ~1919 |
| Mary Mullen | Daughter | — | 25 | ~1915 |
| Margaret Mullen | Daughter | — | 14 | ~1926 |
| Nora Mullen | Head | — | 47 | ~1893 |
| John Mullen | Son | — | 17 | ~1923 |
Census Appearances
1930
San Francisco, …
Son, age 9
San Francisco, California · implied b. ~1921 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullen |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Son, age 19
San-Francisco-County, California · implied b. ~1921 — 7 household members
| Surname | Mullen |
| Given Name | Thomas P |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | California |
| 1935 Residence (County) | San Francisco |
| Occupation | Driver |
| Industry | Delivery |
| Class of Worker | PW |
| Hours Worked | 11 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | California |
| 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 Thomas Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Mullen
Son · 1940 · age 19 · b. ~1921 · California
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Sibling
Theresa Mullen
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mullen
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Mullen
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mullen
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mullen
Sibling · 1940 · age 17
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
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00302-00857)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William H Keehley | 78 | Head | Pension | New York |
| 42 | Rose A Keehley | 74 | Wife | Pension | Ohio |
| 44 | Thomas Quade | 49 | Head | Glass Worker | California |
| 45 | Sarah A Quade | 48 | Wife | — | Ireland |
| 46 | Carmine Forcina | 52 | Head | Fisherman | Italy |
| 47 | Madeline Forcina | 42 | Wife | — | California |
| 48 | Marie Forcina | 23 | Daughter | New Worker | California |
| 49 | Raymond Forcina | 21 | Son | Curtain Co. | California |
| 50 | Elmer Burman | 36 | Head | Furniture Co | California |
| 51 | Juanita Burman | 31 | Wife | Stationery Co | California |
| 52 | John Molinari | 56 | Head | Gardener | Italy |
| 53 | Cara Molinari | 55 | Wife | Gardener | Italy |
| 54 | Guido Molinari | 25 | Son | — | California |
| 55 | George R Allen | 28 | Head | Molder | Washington |
| 56 | Natalie Allen | 28 | Wife | — | Alaska |
| 57 | George Allen | 1 | Son | — | California |
| 58 | Nora T Mullen | 47 | Head | — | Ireland |
| 59 | Mary I Mullen | 25 | Daughter | Cashier | Montana |
| 60 | Theresa L Mullen | 21 | Daughter | Clerk | California |
| 61 | Thomas P Mullen THIS PERSON | 19 | Son | Driver | California |
| 62 | John H Mullen | 17 | Son | — | California |
| 63 | Margaret J Mullen | 14 | Daughter | — | California |
| 64 | Eleanor P Mullen | 13 | Daughter | — | California |
| 65 | Samuel Miller | 44 | Head | Inspector | Maine |
| 66 | Goldie Miller | 42 | Wife | — | Poland |
| 67 | Jacqueline Miller | 2 | Daughter | — | California |
| 68 | John F Calverley | 54 | Head | Bench Hand | England |
| 69 | Chrissie Calverley | 52 | Wife | Saleslady | Scotland |
| 70 | Kathleen Calverley | 24 | Daughter | Waitress | England |
| 71 | John Jr. Calverley | 13 | Son | — | California |
| 72 | Margaret Greer | 57 | Sister-in-law | — | Scotland |
| 73 | Jean Frazer | 56 | Sister-in-law | — | Scotland |
| 74 | Sigurd Moll | 46 | Head | Building Cont. | Norway |
| 75 | Nellie J Moll | 43 | Wife | — | Kansas |
| 76 | Betty Moll | 18 | Daughter | — | California |
| 77 | Sigurd J Moll | 16 | Son | — | California |
| 78 | Norman R Moll | 5 | Son | — | California |
| 79 | George Thomas | 65 | Head | Handy Man | Austria |
| 80 | Katherine Thomas | 72 | Wife | — | Austria |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)