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Louis Harris — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Louis Harris across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1913), then head of a 7-person household.
Age 27
b. ~1913
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Harris |
| Given Name | Louis |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Janitor |
| Industry | Steel mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Janitor |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1913 |
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 Louis | Age | Birth yr |
|---|---|---|---|---|
| William Harris | Son | — | 3 | ~1937 |
| Alister Harris | Spouse | — | 26 | ~1914 |
| Louis Harris | Head | — | 27 | ~1913 |
| Raymond Harris | Son | — | 2 | ~1938 |
| Louis Harris | Son | — | 5 | ~1935 |
| Shirley Harris | Daughter | — | ~1940 | |
| Russell Harris | Son | — | 5 | ~1935 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 17
Allegheny, Pennsylvania · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Louis S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Stock clerk |
| Industry | Furniture Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 27
Allegheny-County, Pennsylvania · implied b. ~1913 — 7 household members
| Surname | Harris |
| Given Name | Louis |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Occupation | Janitor |
| Industry | Steel mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Louis Harris across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Harris
Head · 1940 · age 27 · b. ~1913 · Pennsylvania
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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-t0627-03677-00301)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Valentine | 66 | wife | — | Pennsylvania |
| 2 | William Valentine | 29 | nephew | — | Pennsylvania |
| 3 | Gladys Valentine | 25 | niece | — | Pennsylvania |
| 4 | Lucille Valentine | 25 | niece | — | Pennsylvania |
| 5 | James Valentine | 24 | nephew | — | Pennsylvania |
| 6 | Irene Valentine | 21 | niece | — | Pennsylvania |
| 7 | Roy (X) Mcbutler | 50 | head | Laborer | Pennsylvania |
| 8 | William (X) Randolph | 31 | head | Laborer | Virginia |
| 9 | Benjamin Scales | 35 | boarder | Truck Driver | Virginia |
| 10 | Mason (X) Meldrum | 42 | head | Molder | North Carolina |
| 11 | Daisy Meldrum | 39 | wife | — | North Carolina |
| 12 | George Meldrum | 19 | son | — | North Carolina |
| 13 | Mayme Meldrum | 17 | daughter | — | West Virginia |
| 14 | Thelma Meldrum | 15 | daughter | — | Pennsylvania |
| 15 | Mildred Meldrum | 11 | daughter | — | Pennsylvania |
| 16 | John M. Meldrum | 8 | son | — | Pennsylvania |
| 17 | Ethel Palmer | 20 | daughter | — | Pennsylvania |
| 18 | Eugene Palmer | 35 | son-in-law | Fireman Of Boiler | West Virginia |
| 19 | Janet Palmer | 2 | niece | — | Pennsylvania |
| 20 | Edward Palmer | 1 | nephew | — | Pennsylvania |
| 21 | Donald Palmer | 0 | nephew | — | Pennsylvania |
| 22 | Arthur (X) Scales | 26 | head | Brick Layer | Pennsylvania |
| 23 | Annie Scales | 31 | wife | — | Pennsylvania |
| 24 | Albert Scales | 14 | son | — | Pennsylvania |
| 25 | Robert (X) Mcwoods | 74 | head | Track Worker | Virginia |
| 26 | Annie Mcwoods | 65 | wife | — | Virginia |
| 27 | Louis Harris THIS PERSON | 27 | head | Janitor | Pennsylvania |
| 28 | Alister (X) Harris | 26 | wife | — | Virginia |
| 29 | Louis Harris | 5 | son | — | Pennsylvania |
| 30 | Russell Harris | 5 | son | — | Pennsylvania |
| 31 | William Harris | 3 | son | — | Pennsylvania |
| 32 | Raymond Harris | 2 | son | — | Pennsylvania |
| 33 | Shirley Ann Harris | 0 | daughter | — | Pennsylvania |
| 34 | Ralph (X) Antonio | 33 | head | Janitor | Pennsylvania |
| 35 | Serena Antonio | 32 | wife | — | Virginia |
| 36 | Lloyd Jones | 14 | son | — | Pennsylvania |
| 37 | James Sallas | 60 | head | Maintenance Man | North Carolina |
| 38 | Naomi (X) Sallas | 49 | wife | — | Virginia |
| 39 | Nathan Harris | 55 | head | Pitman | Virginia |
| 40 | Bertha (X) Harris | 50 | wife | — | 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)