MD
Mary Davidson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Tuscaloosa, Alabama
Our Model Tree links this Mary Davidson across the 1920, 1930 and 1940 US Censuses in Tuscaloosa, Alabama (XGBoost, ~Confirmed), with identified parents George & George — first a daughter (b.~1902), then head of a 4-person household.
Age 28
b. ~1902
Female
Daughter
Born: Alabama
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Tuscaloosa, Alabama |
| Surname | Davidson |
| Given Name | Mary S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Alabama |
| Age at First Marriage | No |
| 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 | Tuscaloosa City |
| Est. Birth Year | ~1902 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Davidson | Daughter | — | 28 | ~1902 |
| George Davidson | Head | — | 53 | ~1877 |
| George Davidson | Son | — | 25 | ~1905 |
| Rosalie Davidson | Spouse | — | 49 | ~1881 |
Census Appearances
1920
Tuscaloosa, Alabama
Daughter, age 17
Tuscaloosa, Alabama · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Mary R. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read | No |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Tuscaloosa, Alabama
Daughter, age 28
Tuscaloosa, Alabama · implied b. ~1902 — 4 household members
| Surname | Davidson |
| Given Name | Mary S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Alabama |
| Age at First Marriage | No |
| 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
Spouse, age 38
Tuscaloosa-County, Alabama · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Margaret Y. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Tuscaloosa City |
| 1935 Residence (County) | Tuscaloosa |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 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 Davidson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Davidson (~0.92 confidence) and father George Davidson (~0.92 confidence) and mother Rosalie Davidson (~0.92 confidence) and mother Sandra Davidson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Davidson
b. ~1872
Source father
● Household
· direct · ~0.92
Father
George Davidson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Rosalie Davidson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Sandra Davidson
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Davidson
Daughter · 1930 · age 28 · b. ~1902 · Alabama
★ You are viewing this record
Sibling
George Davidson
Sibling · 1930 · age 25
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
50 people indexed on this census page (ia:1930:15thcensus51usce:0996)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Katie Morgan | 34 | Daughter | Teacher | Alabama |
| 52 | Reginald Morgan | 16 | Son | — | Alabama |
| 53 | Cornelius Jr. Morgan | 15 | Son | — | Alabama |
| 54 | Bernice Morgan | 13 | Daughter | — | Alabama |
| 55 | Lorenza Morgan | 9 | Son | — | Alabama |
| 56 | Estelle C. Morgan | 7 | Daughter | — | Alabama |
| 57 | Charlie Brown | 31 | Head | Packer | Alabama |
| 58 | Minnie Brown | 29 | Wife | Cook-House | Alabama |
| 59 | Parker Brown | 11 | Son | — | Alabama |
| 60 | Estella Brown | 9 | Daughter | — | Alabama |
| 61 | Charlie Jr. Brown | 8 | Son | — | Alabama |
| 62 | Edna Brown | 6 | Daughter | — | Alabama |
| 63 | Evaline Brown | 4 | Daughter | — | Alabama |
| 64 | James Brown | 1 | Son | — | Alabama |
| 65 | Jessie C. Williams | 53 | Head | — | Alabama |
| 66 | Kemp Williams | 11 | Son | — | Alabama |
| 67 | George Marion Williams | 18 | Son | — | Alabama |
| 68 | Frank Atlantic | 44 | Boarder | Laborer | Alabama |
| 69 | Willie Foster | 28 | Head | Ditch Digger | Alabama |
| 70 | Mary Foster | 25 | Wife | Ironer | Alabama |
| 71 | Charles Foster | 1 | Son | — | Alabama |
| 72 | William D. Haran | 37 | Head | Salesman | Alabama |
| 73 | Ida L. Haran | 32 | Wife | — | Alabama |
| 74 | Mildred Haran | 15 | Daughter | — | Alabama |
| 75 | Mary J. Haran | 4 | Daughter | — | Alabama |
| 76 | Victor S. Murphy | 48 | Head | Machinist | Alabama |
| 77 | James W. Murphy | 15 | Son | — | Illinois |
| 78 | Frank W. Murphy | 14 | Son | — | Illinois |
| 79 | Lochlan R. Lyall | 21 | Head | Auto Mechanic | Alabama |
| 80 | Clara S. Lyall | 20 | Wife | — | Alabama |
| 81 | Jansie H. Lyall | 0 | Daughter | — | Alabama |
| 82 | Violet B. Devine | 11 | Sister-in-law | — | Alabama |
| 83 | Harvey L. Forester | 49 | Head | Lawyer | Pennsylvania |
| 84 | Lula B. Forester | 50 | Wife | — | Alabama |
| 85 | Thomas M. Meigs | 47 | Head | Carpenter | Alabama |
| 86 | Hattie J. Meigs | 45 | Wife | — | Alabama |
| 87 | Mary J. Meigs | 10 | Daughter | — | Alabama |
| 88 | John B. Driver | 36 | Head | Barber | Alabama |
| 89 | Willie R. Driver | 34 | Wife | — | Alabama |
| 90 | Mildred Driver | 11 | Daughter | — | Alabama |
| 91 | Clayton Driver | 9 | Son | — | Mississippi |
| 92 | Eveline Driver | 7 | Daughter | — | Mississippi |
| 93 | John B. Driver | 4 | Son | — | Alabama |
| 94 | Charles P. Driver | 3 | Son | — | Alabama |
| 95 | Ray Driver | 1 | Son | — | Alabama |
| 96 | Isabel Driver | 0 | Daughter | — | Alabama |
| 97 | George B. Davidson | 53 | Head | Blacksmith | Alabama |
| 98 | Rosalie Davidson | 49 | Wife | — | Alabama |
| 99 | Mary S. Davidson THIS PERSON | 28 | Daughter | — | Alabama |
| 100 | George B. Davidson | 25 | Son | Machinist | Alabama |
Pedigree Summary
Mary + 1 sibling
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 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)