JM
John Monroe — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Monroe across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 8-person household.
Age 54
b. ~1886
Male
Head
Born: Georgia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Monroe |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Laborer |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Occupation | Laborer |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1886 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Monroe | Head | — | 54 | ~1886 |
| William Monroe | Son | — | 12 | ~1928 |
| Willamae Monroe | Spouse | — | 54 | ~1886 |
| Alfonso Woodson | Son | — | 9 | ~1931 |
| Robert Mergenthaler | Son | — | 35 | ~1905 |
| Sarah Mergenthaler | Other | — | 75 | ~1865 |
| Colna Woodson | Other | — | 37 | ~1903 |
| Francis Monroe | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Philadelphia, Pennsylvania
Head, age 42
Philadelphia, Pennsylvania · implied b. ~1888 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Monroe |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | Black |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Georgia |
| Age at First Marriage | 20 |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | Laborer |
| Industry | Phila. Navy Yard |
| Class of Worker | W |
| Can Read/Write | No |
| Home Owned/Rented | R |
| Home Value / Rent | 22.00 |
| Veteran | no |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Philadelphia-County, Pennsylvania
Head, age 54
Philadelphia-County, Pennsylvania · implied b. ~1886 — 8 household members
| Surname | Monroe |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Laborer |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 Monroe across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Monroe
Head · 1940 · age 54 · b. ~1886 · 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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-03698-00922)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Walter Fairley | 40 | Head | Laborer | S. Carolina |
| 42 | Rebecca Harrison | 38 | Lodger | Housemaid | S. Carolina |
| 43 | Lodger Mary | None | F | — | — |
| 44 | Stella Shish | 30 | Lodger | Laborer | Georgia |
| 45 | George Jones | 31 | Lodger | Laborer | Alabama |
| 48 | Elois Byrd | 33 | Lodger | Cook | Florida |
| 49 | Melthina Jones | 39 | Head | Housemaid | Pennsylvania |
| 50 | Theresa Miller | 54 | Mother | Housemaid | Pennsylvania |
| 51 | Thomas Miller | 17 | Brother | New Worker | Pennsylvania |
| 52 | Walter Miller | 21 | Brother | Busboy | Pennsylvania |
| 53 | Bertha Spencer | 18 | Lodger | New Worker | Pennsylvania |
| 54 | Percy Spencer | 4 | Lodger | — | Pennsylvania |
| 55 | Oscar Jones | 44 | Uncle | Laborer | Pennsylvania |
| 56 | John Monroe THIS PERSON | 54 | Head | Laborer | Georgia |
| 57 | Willamae Monroe | 54 | Wife | — | S. Carolina |
| 58 | Francis Monroe | 14 | Daughter | — | Pennsylvania |
| 59 | William Monroe | 12 | Son | — | Pennsylvania |
| 60 | Colna Woodson | 37 | Sister | Housemaid | S. Carolina |
| 61 | Alfonso Woodson | 9 | Son | — | Pennsylvania |
| 62 | Sarah Mergenthaler | 75 | Mother-in-law | — | Pennsylvania |
| 63 | Robert Mergenthaler | 35 | Son | Molder | Pennsylvania |
| 64 | Ella Becker | 40 | Head | Seamstress | Georgia |
| 65 | Herbert Becker | 22 | Son | New Worker | Georgia |
| 66 | William Becker | 17 | Son | New Worker | Georgia |
| 67 | Magdalene Allen | 19 | Lodger | — | N. Carolina |
| 68 | Herbert Allen | 0 | Lodger | — | Pennsylvania |
| 69 | Christian Andrews | 24 | Lodger | Seamstress | N. Carolina |
| 70 | Frances Andrews | 7 | Lodger | — | N. Carolina |
| 71 | William Andrews | 4 | Lodger | — | N. Carolina |
| 72 | Lunie Peat | 27 | Lodger | Laborer | S. Carolina |
| 73 | Todd Junior Peat | 30 | Lodger | Laborer | S. Carolina |
| 74 | Alex Young | 60 | Head | Salesman | Russia |
| 75 | Bessie Young | 60 | Wife | — | Russia |
| 76 | Lillian Silverman | 35 | Daughter | — | Pennsylvania |
| 77 | Harris Silverman | 40 | Son-in-law | Shipper | Pennsylvania |
| 78 | Earl Jones | 55 | Head | Cook | Albania |
| 79 | Delbert Latem | 63 | Head | Machinist | Michigan |
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)