MC
Mary Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ramsey-County, Minnesota
Our Model Tree links this Mary Clark across the 1920, 1930 and 1940 US Censuses in Ramsey-County, Minnesota (XGBoost, ~Confirmed), with identified parents William & Kathryn — first a daughter (b.~1892), then head of a 3-person household.
Age 48
b. ~1892
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ramsey-County, Minnesota |
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | St. Paul city |
| 1935 Residence (County) | Ramsey |
| Additional Details | |
| Occupation | private-secretary |
| Industry | attorneys office |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 736 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Private-Secretary |
| Township / Ward | St Paul City |
| Est. Birth Year | ~1892 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Irene Clark | Daughter | — | 51 | ~1889 |
| Mary Clark | Daughter | — | 48 | ~1892 |
| William Clark | Head | — | 77 | ~1863 |
Census Appearances
1920
Ramsey, Minnesota
Daughter, age 28
Ramsey, Minnesota · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Stenographer |
| Industry | Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Ramsey, Minnesota
Daughter, age 38
Ramsey, Minnesota · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stenographer |
| Industry | Law Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Ramsey-County, Minnesota
Daughter, age 48
Ramsey-County, Minnesota · implied b. ~1892 — 3 household members
| Surname | Clark |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | St. Paul city |
| 1935 Residence (County) | Ramsey |
| Occupation | private-secretary |
| Industry | attorneys office |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 736 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Clark (~0.92 confidence) and mother Kathryn Clark (~0.60 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.76
Father
William Clark
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Kathryn Clark
b. ~1881
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Mary Clark
Daughter · 1940 · age 48 · b. ~1892 · Minnesota
★ You are viewing this record
Sibling
Irene Clark
Sibling · 1940 · age 51
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 — Ramsey-County, Minnesota
Open full size
1940 US Federal Census — Ramsey-County, Minnesota
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01994-00725)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Francis Philgen | 22 | Head | Cleaning Woman | Minnesota |
| 2 | Doris Philgen | 13 | Daughter | — | Minnesota |
| 3 | John Zenko | 45 | Head | Section Laborer | Russia |
| 4 | James Fack | 54 | Partner | Section Laborer | Russia |
| 5 | Frank Kachen | 53 | Partner | Section Laborer | Russia |
| 6 | Gertrude Broadbent | 29 | Head | Cleaning Woman | Minnesota |
| 7 | Catherine Broadbent | 9 | Daughter | — | Minnesota |
| 8 | Donna Broadbent | 6 | Daughter | — | Minnesota |
| 9 | Bayard Taplin | 68 | Head | — | Minnesota |
| 10 | Margaret Taplin | 55 | Wife | — | Minnesota |
| 11 | William Sokal | 44 | Head | Matron | Russia |
| 12 | Daniel Pocgenegak | 63 | Partner | — | Russia |
| 13 | Charles Omelina | 40 | Head | Section Laborer | Minnesota |
| 14 | Evelyn Omelina | 40 | Wife | Night-Watchman | Minnesota |
| 15 | Helen Omelina | 18 | Daughter | Stenographer-Clerk | Minnesota |
| 16 | Lorraine Omelina | 14 | Daughter | Typist-Clerk | Minnesota |
| 17 | Charlotte Omelina | 12 | Daughter | — | Minnesota |
| 18 | Rosemary Omelina | 11 | Daughter | — | Minnesota |
| 20 | Otto A Brink | 62 | Head | Carpenter | Sweden |
| 21 | Cecelia H Brink | 61 | Wife | — | Wisconsin |
| 22 | La Viza Brink | 25 | Daughter-in-law | — | North Dakota |
| 23 | Kathryn Brink | 1 | Granddaughter | — | North Dakota |
| 24 | John Pitzel | 32 | Head | Tapeting | Minnesota |
| 25 | Agnes B Pitzel | 29 | Wife | Filing Clerk | Minnesota |
| 26 | John Hetherington | 83 | Head | Carpenter | Minnesota |
| 27 | Nellie Hetherington | 48 | Wife | — | Minnesota |
| 28 | Earl Hetherington | 19 | Son | Delivery Boy | Minnesota |
| 29 | Evelyn Lindeman | 29 | Head | Waitress | Minnesota |
| 30 | Eva Gallagher | 20 | Partner | Waitress | Minnesota |
| 31 | John Eugene Ryan | 49 | Head | Linotype Operator | Minnesota |
| 32 | Helen Ryan | 48 | Wife | — | Minnesota |
| 33 | James Ryan | 23 | Son | Cook | Minnesota |
| 34 | Marjorie Ryan | 19 | Daughter | Stenographer | Minnesota |
| 35 | Florence Gibson | 37 | Lodger | Beauty Operator | Minnesota |
| 36 | William M Clark | 77 | Head | — | Wisconsin |
| 37 | Irene D Clark | 51 | Daughter | — | Minnesota |
| 38 | Mary Clark THIS PERSON | 48 | Daughter | Private-Secretary | Iowa |
| 39 | Ole Swanson | 72 | Head | — | Sweden |
| 40 | Johanna M Swanson | 71 | Wife | — | Sweden |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 2 parents
~0.76
Max depth 4 (1900–1950 window)
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)