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James Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Silver-Bow-County, Montana
Our Model Tree links this James Sullivan across the 1920, 1930 and 1940 US Censuses in Silver-Bow-County, Montana (XGBoost, ~Confirmed), with identified parents James & Sarah — first a head (b.~1899), then head of a 5-person household.
Age 41
b. ~1899
Male
Head
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Silver-Bow-County, Montana |
| Surname | Sullivan |
| Given Name | James R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Butte city |
| 1935 Residence (County) | Silver Bow |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Utility |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 2500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Bookkeeper |
| Township / Ward | Butte City |
| Est. Birth Year | ~1899 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Kathleen Sullivan | Daughter | — | 9 | ~1931 |
| Sheila Sullivan | Daughter | — | 5 | ~1935 |
| James Sullivan | Head | — | 41 | ~1899 |
| Margaret O'Mara | Other | — | 70 | ~1870 |
| Margaret Sullivan | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Silver Bow, …
Son, age 21
Silver Bow, Montana · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Bookkeeper |
| Industry | Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Silver Bow, …
Head, age 32
Silver Bow, Montana · implied b. ~1898 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | James P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Montana |
| Age at First Marriage | 30 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Book Keeper |
| Industry | Hardware Warehouse |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Silver-Bow-County, Montana
Head, age 41
Silver-Bow-County, Montana · implied b. ~1899 — 5 household members
| Surname | Sullivan |
| Given Name | James R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Butte city |
| 1935 Residence (County) | Silver Bow |
| Occupation | Bookkeeper |
| Industry | Utility |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 2500 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 James Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Sullivan (~0.92 confidence) and mother Sarah Sullivan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Sullivan
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Sarah Sullivan
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Sullivan
Head · 1940 · age 41 · b. ~1899 · Montana
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Silver-Bow-County, Montana
Open full size
1940 US Federal Census — Silver-Bow-County, Montana
Page Contents
29 people indexed on this census page (nara:1940:m-t0627-02230-00606)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Pierre Feretti | 24 | Wife | Housewife | Michigan |
| 42 | George Seeger | 30 | Head | Professor | California |
| 43 | Ruby Lee Seeger | 33 | Wife | Housewife | Texas |
| 44 | Larry Seeger | 3 | Son | — | Montana |
| 45 | Charles B. Haynes | 48 | Head | Painter | New York |
| 46 | Dora S. Haynes | 31 | Wife | Housewife | Indiana |
| 47 | Charles B. Jr. Haynes | 5 | Son | — | Montana |
| 48 | Betty Ann Haynes | 3 | Daughter | — | Montana |
| 49 | John J. Davis | 63 | Head | Dentist | Kentucky |
| 50 | Delia S. Davis | 71 | Wife | Housewife | Montana |
| 51 | Russel Doyle | 22 | Daughter | Housewife | Montana |
| 52 | Thomas Doyle | 3 | Grandson | — | Montana |
| 53 | Mary E. Kelehan | 65 | Head | Housewife | Pennsylvania |
| 54 | Marie Kelehan | 33 | Daughter | Housewife | Montana |
| 55 | John Kelehan | 32 | Son | Teamster | Montana |
| 56 | Margaret Kelehan | 30 | Daughter | Stenographer | Montana |
| 57 | Leo Kelehan | 27 | Son | Printer | Montana |
| 58 | James R. Sullivan THIS PERSON | 41 | Head | Bookkeeper | Montana |
| 59 | Margaret Sullivan | 35 | Wife | Housewife | Montana |
| 60 | Kathleen Jean Sullivan | 9 | Daughter | — | Montana |
| 61 | Sheila Marie Sullivan | 5 | Daughter | — | Montana |
| 62 | Margaret O'Mara | 70 | Mother in law | Housewife | Eire |
| 63 | Ed Dolan | 55 | Head | Teamster | Colorado |
| 64 | Peter E. Rafferty | 43 | Head | Contractor | Montana |
| 65 | Kathryn Rafferty | 40 | Wife | Housewife | Montana |
| 66 | Patricia Rafferty | 13 | Daughter | — | California |
| 67 | Erick Stahlberg | 56 | Head | Machinist | Sweden |
| 68 | Eileen Stahlberg | 20 | Daughter | Housework | Montana |
| 69 | Nellie Mcgovern | 65 | Head | Housewife | New York |
Pedigree Summary
James
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)