MN
Mary Nicholson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Tuscaloosa, Alabama
Our Model Tree links this Mary Nicholson across the 1930 and 1940 US Censuses in Tuscaloosa, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 10-person household.
Age 3
b. ~1927
Female
Daughter
Born: Alabama
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Tuscaloosa, Alabama |
| Surname | Nicholson |
| Given Name | Mary G |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Vance Beat Precinct 13 |
| Est. Birth Year | ~1927 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Paul Nicholson | Son | — | 21 | ~1909 |
| Mary Nicholson | Daughter | — | 3 | ~1927 |
| Gilbert Nicholson | Son | — | 8 | ~1922 |
| James Nicholson | Son | — | 10 | ~1920 |
| Irene Nicholson | Daughter | — | 12 | ~1918 |
| John Nicholson | Son | — | 6 | ~1924 |
| John Nicholson | Head | — | 53 | ~1877 |
| Lydia Nicholson | Spouse | — | 40 | ~1890 |
| James Nicholson | Son | — | 16 | ~1914 |
| Lillie Nicholson | Daughter | — | 18 | ~1912 |
Census Appearances
1930
Tuscaloosa, Alabama
Daughter, age 3
Tuscaloosa, Alabama · implied b. ~1927 — 10 household members
| Surname | Nicholson |
| Given Name | Mary G |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Tuscaloosa-County, Alabama
Other, age 14
Tuscaloosa-County, Alabama · implied b. ~1926 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | Mae F. |
| Relationship to Head | Granddaughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Tuscaloosa City |
| 1935 Residence (County) | Tuscaloosa |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Mary Nicholson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Nicholson
Daughter · 1930 · age 3 · b. ~1927 · Alabama
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Sibling
Gilbert Nicholson
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillie Nicholson
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Nicholson
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Nicholson
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Nicholson
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Nicholson
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Nicholson
Sibling · 1930 · age 6
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
1930 US Federal Census — Tuscaloosa, Alabama
Open full size
1930 US Federal Census — Tuscaloosa, Alabama
Page Contents
18 people indexed on this census page (ia:1930:15thcensus51usce:0418)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Samuel M Holmes | 25 | Head | Sawyer | Alabama |
| 52 | Gertrude Holmes | 22 | Wife | — | Alabama |
| 53 | Nellie G Holmes | 0 | Daughter | — | Alabama |
| 54 | John W Nicholson | 53 | Head | Fireman | Alabama |
| 55 | Lydia Nicholson | 40 | Wife | — | Alabama |
| 56 | Paul Nicholson | 21 | Son | — | Alabama |
| 57 | Lillie Nicholson | 18 | Daughter | — | Alabama |
| 58 | James Nicholson | 16 | Son | — | Alabama |
| 59 | Irene Nicholson | 12 | Daughter | — | Alabama |
| 60 | James Nicholson | 10 | Son | — | Alabama |
| 61 | Gilbert Nicholson | 8 | Son | — | Alabama |
| 62 | John E Nicholson | 6 | Son | — | Alabama |
| 63 | Mary G Nicholson THIS PERSON | 3 | Daughter | — | Alabama |
| 64 | Charlie Fagler | 69 | Head | Laborer | Mississippi |
| 65 | John Sparks | 26 | Head | Laborer | Alabama |
| 66 | Casson Cooley | 20 | Head | Laborer | Alabama |
| 67 | Robert L George | 48 | Head | Farmer | Alabama |
| 68 | Maude George | 39 | Wife | — | Alabama |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)