MC
Marie Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Anne-Arundel-County, Maryland
Our Model Tree links this Marie Clark across the 1930 and 1940 US Censuses in Anne-Arundel-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 12-person household.
Age 15
b. ~1925
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Anne-Arundel-County, Maryland |
| Surname | Clark |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election 10 |
| 1935 Residence (County) | Anne Arundel |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election 10 |
| Est. Birth Year | ~1925 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marie | Age | Birth yr |
|---|---|---|---|---|
| Mae Clark | Daughter | — | 8 | ~1932 |
| George Neary | Other | — | 76 | ~1864 |
| Hammond Clark | Son | — | 11 | ~1929 |
| Moses Clark | Head | — | 45 | ~1895 |
| Millard Clark | Son | — | 17 | ~1923 |
| Alvin Clark | Son | — | 21 | ~1919 |
| Gladis Clark | Daughter | — | 14 | ~1926 |
| Clara Clark | Daughter | — | 7 | ~1933 |
| Garney Clark | Son | — | 18 | ~1922 |
| Leanna Clark | Spouse | — | 45 | ~1895 |
| Oscar Clark | Son | — | 16 | ~1924 |
| Marie Clark | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Anne Arundel, …
Daughter, age 4
Anne Arundel, Maryland · implied b. ~1926 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Anne-Arundel-County, Maryland
Daughter, age 15
Anne-Arundel-County, Maryland · implied b. ~1925 — 12 household members
| Surname | Clark |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election 10 |
| 1935 Residence (County) | Anne Arundel |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Marie Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marie Clark
Daughter · 1940 · age 15 · b. ~1925 · Maryland
★ You are viewing this record
Sibling
Mae Clark
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Garney Clark
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Millard Clark
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Clark
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oscar Clark
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvin Clark
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hammond Clark
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladis Clark
Sibling · 1940 · age 14
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 — Anne-Arundel-County, Maryland
Open full size
1940 US Federal Census — Anne-Arundel-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01501-00235)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Moses Clark | 45 | Head | Farmer | Maryland |
| 2 | Leanna Clark | 45 | Wife | — | Maryland |
| 3 | Alvin Clark | 21 | Son | Farmer | Maryland |
| 4 | Garney Clark | 18 | Son | Labor | Maryland |
| 5 | Millard Clark | 17 | Son | Farmer | Maryland |
| 6 | Oscar Clark | 16 | Son | — | Maryland |
| 7 | Marie Clark THIS PERSON | 15 | Daughter | — | Maryland |
| 8 | Gladis Clark | 14 | Daughter | — | Maryland |
| 9 | Hammond Clark | 11 | Son | — | Maryland |
| 10 | Mae Clark | 8 | Daughter | — | Maryland |
| 11 | Clara Lee Clark | 7 | Daughter | — | Maryland |
| 12 | George Neary | 76 | Lodger | — | Maryland |
| 13 | James Brockman | 38 | Head | Labor | Virginia |
| 14 | Mae Brockman | 35 | Wife | — | Virginia |
| 15 | Son Brockman | 13 | Son | — | Virginia |
| 16 | Daughter Brockman | 7 | Daughter | — | Maryland |
| 17 | Son Brockman | 5 | Son | — | Maryland |
| 18 | Son Brockman | 3 | Son | — | Maryland |
| 19 | Benj. F. Brockman | 42 | Brother | Labor | Virginia |
| 20 | Charles Mcdonald | 68 | Head | — | Scotland |
| 21 | Clifton Turner | 41 | Head | Farmer | Maryland |
| 22 | Iva Turner | 37 | Wife | — | Maryland |
| 23 | Ralph Nichols | 20 | S. Son | Farmer | Maryland |
| 24 | Clifton Jr. Turner | 10 | Son | — | Maryland |
| 25 | Benj Kehring | 44 | Head | Farmer | Wis |
| 26 | Eliza Kehring | 38 | Wife | — | Maryland |
| 27 | Ruth Kehring | 18 | Daughter | New Worker | Maryland |
| 28 | Naomi Kehring | 11 | Daughter | — | Maryland |
| 29 | Helen Kehring | 8 | Daughter | — | Maryland |
| 30 | Thomas Mason | 54 | Head | Labor | Maryland |
| 31 | Emma Mason | 59 | Wife | — | Maryland |
| 32 | Robert Mason | 38 | Son | Labor | Maryland |
| 33 | Richard Mason | 35 | Son | Labor | Maryland |
| 34 | Pearl Mason | 22 | Daughter | New Worker | Maryland |
| 35 | Emma Mason | 21 | Daughter | — | Maryland |
| 36 | Helen Mason | 18 | Daughter | — | Maryland |
| 37 | Thomas Mason | 7 | Son | — | Maryland |
| 38 | James Mason | 6 | Son | — | Maryland |
| 39 | Lawrence Mason | 4 | Son | — | Maryland |
| 40 | Schuyler Mason | 3 | Daughter | — | Maryland |
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)