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John Simms — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Pennsylvania
Our Model Tree links this John Simms across the 1930 and 1940 US Censuses in Montgomery-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 6-person household.
Age 16
b. ~1924
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Pennsylvania |
| Surname | Simms |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Bala Cynwyd |
| Est. Birth Year | ~1924 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Simms | Spouse | — | 40 | ~1900 |
| Dorothy Van Roden | Daughter | — | 42 | ~1898 |
| Richard Simms | Son | — | 8 | ~1932 |
| John Simms | Son | — | 16 | ~1924 |
| Earl Simms | Head | — | 45 | ~1895 |
| Jane Simms | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Delaware, Pennsylvania
Son, age 6
Delaware, Pennsylvania · implied b. ~1924 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simms |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Montgomery-County, Pennsylvania
Son, age 16
Montgomery-County, Pennsylvania · implied b. ~1924 — 6 household members
| Surname | Simms |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Industry | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 John Simms across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Simms
Son · 1940 · age 16 · b. ~1924 · Pennsylvania
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Sibling
Dorothy Van Roden
Sibling · 1940 · age 42
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Simms
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Simms
Sibling · 1940 · age 13
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 — Montgomery-County, Pennsylvania
Open full size
1940 US Federal Census — Montgomery-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03580-01042)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Davis | 20 | Servant | General Housework | Maryland |
| 2 | Earl Simms | 45 | Head | Apt. House Manager | Pennsylvania |
| 3 | Catherine S. Simms | 40 | Wife | — | New Jersey |
| 4 | John Simms THIS PERSON | 16 | Son | — | Pennsylvania |
| 5 | Jane Simms | 13 | Daughter | — | New Jersey |
| 6 | Richard Simms | 8 | Son | — | Pennsylvania |
| 7 | Dorothy Van Roden | 42 | Daughter | — | Pennsylvania |
| 8 | E. Preston Sharp | 35 | Head | Supervisor | Pennsylvania |
| 9 | Catherine S. Sharp | 32 | Wife | — | Pennsylvania |
| 10 | Madeline W. Sharp | 2 | Daughter | — | Pennsylvania |
| 11 | Wm. H. Jackson | 62 | Head | Salesman | Pennsylvania |
| 12 | Sara F. Jackson | 40 | Wife | Nurse | Pennsylvania |
| 13 | Edwin Lane | 68 | Head | Vice President | Pennsylvania |
| 14 | Caroline S. Lane | 48 | Wife | — | Pennsylvania |
| 15 | Annette S. Lane | 21 | Daughter | — | Pennsylvania |
| 16 | Barbara S. Lane | 17 | Daughter | — | Pennsylvania |
| 17 | Howard A. Foster | 45 | Head | Customer Broker | California |
| 18 | Harriet B. Foster | 44 | Wife | — | Pennsylvania |
| 19 | Phyllis Foster | 17 | Daughter | — | Pennsylvania |
| 20 | Wm. A. Boone | 30 | Lodger | Salesman | Iowa |
| 21 | George E. Bassett | 58 | Head | Clerk | Pennsylvania |
| 22 | Mabel E. Bassett | 57 | Wife | — | Pennsylvania |
| 23 | David E. Bassett | 17 | Son | — | Pennsylvania |
| 24 | Helen B. Wilson | 51 | Head | — | Pennsylvania |
| 25 | Edward G. Wilson | 27 | Son | Photographer | Pennsylvania |
| 26 | Annie C. Ustimler | 86 | Head | — | England |
| 27 | Blanche W. Dellers | 63 | Sister | — | Pennsylvania |
| 28 | Arthur M. Springer | 39 | Head | Salesman | Pennsylvania |
| 29 | Jessie M. Brown | 50 | Sister | — | Pennsylvania |
| 30 | Helen A. Springer | 41 | Head | Glass Broker | Pennsylvania |
| 31 | Lillian Springer | 35 | Wife | — | Pennsylvania |
| 32 | James J. Springer | 13 | Son | — | Pennsylvania |
| 33 | Allen Springer | 8 | Son | — | Pennsylvania |
| 34 | H. Christie | 50 | Head | Electrician | Pennsylvania |
| 35 | Jane M. Christie | 35 | Wife | — | Pennsylvania |
| 36 | Margaret Christie | 15 | Daughter | — | Pennsylvania |
| 37 | Roberta Christie | 10 | Daughter | — | Pennsylvania |
| 38 | W. C. Woodward | 50 | Head | Major | Virginia |
| 39 | Mary B. Woodward | 40 | Wife | — | Virginia |
| 40 | Edward Smith | 19 | Step-son | — | Virginia |
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)