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James Mcclain — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Mcclain across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | McClain |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | General Clerk |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 63 |
| Income (1939) | 1100 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | General Clerk |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1918 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Rita Mcclain | Daughter | — | 17 | ~1923 |
| Marie Mcclain | Spouse | — | 46 | ~1894 |
| James Mcclain | Son | — | 22 | ~1918 |
| Ruth Mcclain | Daughter | — | 15 | ~1925 |
| Dorothy Mcclain | Daughter | — | 20 | ~1920 |
| Ralph Mcclain | Son | — | 18 | ~1922 |
| John Mcclain | Head | — | 49 | ~1891 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 12
Allegheny, Pennsylvania · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLane |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 22
Allegheny-County, Pennsylvania · implied b. ~1918 — 7 household members
| Surname | McClain |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | General Clerk |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 63 |
| Income (1939) | 1100 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| 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 James Mcclain across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mcclain
Son · 1940 · age 22 · b. ~1918 · Pennsylvania
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Sibling
Dorothy Mcclain
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Mcclain
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Mcclain
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Mcclain
Sibling · 1940 · age 15
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03661-00709)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry Sutton | 42 | Head | Accountant | Pennsylvania |
| 42 | Bella Potstein | 42 | Wife | — | Pennsylvania |
| 43 | Jacob Potstein | 20 | Son | — | Pennsylvania |
| 44 | Elliott Potstein | 14 | Son | — | Pennsylvania |
| 45 | Milton Potstein | 13 | Son | — | Pennsylvania |
| 46 | Paul Potstein | 11 | Son | — | Pennsylvania |
| 47 | Morris Potstein | 4 | Son | — | Pennsylvania |
| 48 | Amos Bummer | 61 | Head | Leatherworker | Pennsylvania |
| 49 | Mary Bummer | 54 | Wife | — | Pennsylvania |
| 50 | Howard Bummer | 21 | Son | Gasoline Attendant | Pennsylvania |
| 51 | Rita Bummer | 20 | Daughter | New Worker | Pennsylvania |
| 52 | Robert Bummer | 19 | Son | — | Pennsylvania |
| 53 | Raymond Bummer | 16 | Son | — | Pennsylvania |
| 54 | Charles Thomas | 27 | Head | Laborer | Pennsylvania |
| 55 | Elizabeth Thomas | 29 | Wife | — | Pennsylvania |
| 56 | Barbara Thomas | 0 | Daughter | — | Pennsylvania |
| 57 | Emmet O'Connor | 30 | Head | Moulder | Pennsylvania |
| 58 | Helen O'Connor | 25 | Wife | — | Pennsylvania |
| 59 | Robert O'Connor | 1 | Son | — | Pennsylvania |
| 60 | Mary Mcconnell | 66 | Head | — | England |
| 61 | Mary Mcconnell | 27 | Daughter | General Office Clerk | Pennsylvania |
| 62 | Bessie Mcconnell | 23 | Daughter | General Office Clerk | Pennsylvania |
| 63 | Newell Mcconnell | None | Margaret | 40 | H-4 |
| 64 | Michael Conroy | 56 | Head | Utility Man | Virginia |
| 65 | Kate Conroy | 51 | Wife | — | Tennessee |
| 66 | Miriam Conroy | 21 | Daughter | Bank Clerk | Texas |
| 67 | Albert Wysser | 42 | Head | Baked Goods | Germany |
| 68 | Julia Wysser | 42 | Wife | — | Hungary |
| 69 | Albert Wysser | 21 | Son | Head Boy | Pennsylvania |
| 70 | Lewis Wysser | 19 | Son | New Worker | Pennsylvania |
| 71 | William Wysser | 18 | Son | New Worker | Pennsylvania |
| 72 | Howard Wysser | 16 | Son | — | Pennsylvania |
| 73 | Alice Wysser | 14 | Daughter | — | Pennsylvania |
| 74 | John Mcclain | 49 | Head | Laborer | Italy |
| 75 | Marie Mcclain | 46 | Wife | — | Pennsylvania |
| 76 | James Mcclain THIS PERSON | 22 | Son | General Clerk | Pennsylvania |
| 77 | Dorothy Mcclain | 20 | Daughter | Saleslady | Pennsylvania |
| 78 | Ralph Mcclain | 18 | Son | New Worker | Pennsylvania |
| 79 | Rita Mcclain | 17 | Daughter | — | Pennsylvania |
| 80 | Ruth Mcclain | 15 | Daughter | — | Pennsylvania |
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)