RS
Robert Simpson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Montgomery-County, Pennsylvania
Our Model Tree links this Robert Simpson across the 1910, 1920, 1930 and 1940 US Censuses in Montgomery-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a son (b.~1907), then head of a 2-person household.
Age 33
b. ~1907
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Pennsylvania |
| Surname | Simpson |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Additional Details | |
| Hours Worked | 50 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | New York |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Jeffersonville |
| Est. Birth Year | ~1907 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Maude Reed | Head | — | 65 | ~1875 |
| Robert Simpson | Son | — | 33 | ~1907 |
Census Appearances
1910
Montgomery, Pennsylvania
Son, age 3
Montgomery, Pennsylvania · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Robert W |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Montgomery, Pennsylvania
Son, age 13
Montgomery, Pennsylvania · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Montgomery, Pennsylvania
Son, age 23
Montgomery, Pennsylvania · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Office |
| Industry | Merchant marine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Montgomery-County, Pennsylvania
Son, age 33
Montgomery-County, Pennsylvania · implied b. ~1907 — 2 household members
| Surname | Simpson |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Hours Worked | 50 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | New York |
| 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 Robert Simpson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Simpson (~0.92 confidence) and father Charles Simpson (~0.92 confidence) and mother Maude Reed (~0.92 confidence) and mother Annie Simpson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Simpson
b. ~1853
Source father
● Household
· direct · ~0.92
Father
Charles Simpson
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Maude Reed
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Annie Simpson
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Simpson
Son · 1940 · age 33 · b. ~1907 · Pennsylvania
★ 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 — Montgomery-County, Pennsylvania
Open full size
1940 US Federal Census — Montgomery-County, Pennsylvania
Page Contents
29 people indexed on this census page (nara:1940:m-t0627-03586-00142)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bruce R. Kenner | 39 | Head | Farmer | Pennsylvania |
| 2 | Sophia G. Kenner | 34 | Wife | — | Pennsylvania |
| 3 | James Grisdale | 77 | Father-in-law | — | England |
| 4 | Elizabeth A. Grisdale | 68 | Mother-in-law | — | Pennsylvania |
| 5 | Walter R. Cory | 11 | Nephew | — | Pennsylvania |
| 6 | Mabel E. Cory | 16 | Neice | — | Pennsylvania |
| 7 | George E. Kemmer | 41 | Head | Farmer | Pennsylvania |
| 8 | Frances L. Kemmer | 32 | Wife | — | New Jersey |
| 9 | George R. Kemmer | 11 | Son | — | Pennsylvania |
| 10 | Hannah M. Kemmer | 9 | Daughter | — | Pennsylvania |
| 11 | John B. Kemmer | 7 | Son | — | Pennsylvania |
| 12 | Sarah E. Kemmer | 4 | Daughter | — | Pennsylvania |
| 13 | William M. Kemmer | 0 | Son | — | Pennsylvania |
| 14 | George R. Cory | 18 | Nephew | Farm Laborer | Pennsylvania |
| 15 | Charles Warner | 40 | Hired Hand | Farm Laborer | Pennsylvania |
| 16 | Lester Hunsicker | 36 | Head | Salesman | Pennsylvania |
| 17 | Marion Hunsicker | 34 | Wife | — | Pennsylvania |
| 18 | John J. Stanley | 21 | Head | Electric Welder | Pennsylvania |
| 19 | Lora E. Stanley | 20 | Wife | Housekeeper | Pennsylvania |
| 20 | Albert F. Lorah | 22 | Brother-in-law | Laborer | New York |
| 21 | William O. Yost | 75 | Head | — | Pennsylvania |
| 22 | Minerva G. Yost | 74 | Wife | — | Pennsylvania |
| 23 | Leroy Cassel | 35 | Head | Cable Splicer | California |
| 24 | Elizabeth Cassel | 34 | Wife | — | Pennsylvania |
| 25 | Mary G. Ziegler | 66 | Mother-in-law | — | Pennsylvania |
| 26 | Hayes L. Asher | 25 | Head | Private | Pennsylvania |
| 27 | Vesta A. Asher | 20 | Wife | — | Pennsylvania |
| 28 | Maude M. Reed | 65 | Head | — | Pennsylvania |
| 29 | Robert M. Simpson THIS PERSON | 33 | Son | — | Pennsylvania |
Pedigree Summary
Robert
Gen 1 · 4 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)