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Mary Mcdowell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mobile-County, Alabama
Our Model Tree links this Mary Mcdowell across the 1930 and 1940 US Censuses in Mobile-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 8-person household.
Age 24
b. ~1916
Female
Daughter
Born: Alabama
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mobile-County, Alabama |
| Surname | McDowell |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Mobile city |
| 1935 Residence (County) | Mobile |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Mobile City |
| Est. Birth Year | ~1916 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mcdowell | Daughter | — | 24 | ~1916 |
| Nellie Mangold | Head | — | 54 | ~1886 |
| Leo Mcdowell | Other | — | 24 | ~1916 |
| Arthur Mangold | Son | — | 25 | ~1915 |
| Mary Mcdowell | Other | — | ~1940 | |
| Helen Mangold | Daughter | — | 26 | ~1914 |
| Bernard Mangold | Son | — | 21 | ~1919 |
| Edwin Mangold | Son | — | 19 | ~1921 |
Census Appearances
1930
Mobile, Alabama
Daughter, age 10
Mobile, Alabama · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDowell |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| 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
Mobile-County, Alabama
Daughter, age 24
Mobile-County, Alabama · implied b. ~1916 — 8 household members
| Surname | McDowell |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Mobile city |
| 1935 Residence (County) | Mobile |
| Industry | 0 |
| Highest Grade | H-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 Mcdowell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcdowell
Daughter · 1940 · age 24 · b. ~1916 · Alabama
★ You are viewing this record
Sibling
Arthur Mangold
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Mangold
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Mangold
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Mangold
Sibling · 1940 · age 19
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 — Mobile-County, Alabama
Open full size
1940 US Federal Census — Mobile-County, Alabama
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00065-00302)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mrs June I Baker | 38 | Head | Clerk | Michigan |
| 2 | Doris L Baker | 17 | Daughter | — | Florida |
| 3 | Alfred Andrew Baker | 15 | Son | — | Florida |
| 5 | John P Burns | 55 | Head | Caretaker | Alabama |
| 6 | Margaret B Burns | 45 | Wife | — | Alabama |
| 7 | Ralph J Siegelman | 53 | Head | Rate Clerk | Missouri |
| 8 | Louise B Siegelman | 52 | Wife | — | Illinois |
| 9 | Albert J Siegelman | 24 | Son | Clerk | Illinois |
| 10 | Leslie B Siegelman | 26 | Son | Bookkeeper | Illinois |
| 11 | Andrea Siegelman | 21 | Daughter-in-law | Secretary | Alabama |
| 12 | Kelly H Burke | 40 | Head | Secretary | Mississippi |
| 13 | Vesta I Burke | 35 | Wife | — | Mississippi |
| 14 | Helen Burke | 12 | Daughter | — | Alabama |
| 15 | Kelly H Jr Burke | 10 | Son | — | Alabama |
| 16 | Sadie Burke | 8 | Daughter | — | Alabama |
| 17 | Jess Merrall | 54 | Head | Supt. | Illinois |
| 18 | Catherine Merrall | 51 | Wife | — | Illinois |
| 19 | Emmett Mcfayden | 52 | Head | Part Owner | Alabama |
| 20 | Hazel D Mcfayden | 49 | Wife | — | Indiana |
| 21 | Tarrance Harriet Mcfayden | 69 | Mother-in-law | — | New York |
| 22 | Eugene Welborn | 25 | Head | Asst Manager | Georgia |
| 23 | Mabel D Welborn | 24 | Wife | — | Texas |
| 24 | Sarah C Thurbilim | 38 | Head | — | Alabama |
| 25 | Anna Mary Thurbilim | 15 | Daughter | — | Alabama |
| 26 | Ernest Jr Thurbilim | 13 | Son | — | Alabama |
| 27 | Emmett Hughes | 36 | Head | Traveling Salesman | Tennessee |
| 28 | Louise Hughes | 35 | Wife | — | Alabama |
| 29 | Johnnie Talley | 55 | Mother-in-law | — | Alabama |
| 30 | Mary C Rudolph | 51 | Head | Nurse | West Virginia |
| 31 | Herbert R Pirkner | 42 | Head | Civil Engineer | New York |
| 32 | Gladys S Pirkner | 40 | Wife | — | New York |
| 33 | Nellie M Mangold | 54 | Head | Switchboard Operator | Kansas |
| 34 | Helen Mangold | 26 | Daughter | Clerk | Alabama |
| 35 | Arthur Mangold | 25 | Son | Clerk | Alabama |
| 36 | Bernard J Mangold | 21 | Son | Clerk | Alabama |
| 37 | Edwin F Mangold | 19 | Son | Clerk | Alabama |
| 38 | Leo Mcdowell | 24 | Son-in-law | Iron Worker | Mississippi |
| 39 | Mary C Mcdowell THIS PERSON | 24 | Daughter | — | Alabama |
| 40 | Mary C Mcdowell | 0 | Granddaughter | — | Alabama |
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)