MC
Mary Cowan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Jackson, Missouri
Our Model Tree links this Mary Cowan across the 1930 and 1940 US Censuses in Jackson, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 5-person household.
Age 10
b. ~1920
Female
Daughter
Born: Missouri
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Jackson, Missouri |
| Surname | Cowan |
| Given Name | Mary V. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Kansas City |
| Est. Birth Year | ~1920 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Cowan | Daughter | — | 10 | ~1920 |
| Robert Cowan | Head | — | 49 | ~1881 |
| Virginia Cowan | Other | — | 45 | ~1885 |
| James Cowan | Son | — | 12 | ~1918 |
| John Cowan | Son | — | 21 | ~1909 |
Census Appearances
1930
Jackson, Missouri
Daughter, age 10
Jackson, Missouri · implied b. ~1920 — 5 household members
| Surname | Cowan |
| Given Name | Mary V. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Jackson-County, Missouri
Daughter, age 21
Jackson-County, Missouri · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Kansas City |
| 1935 Residence (County) | Jackson |
| Highest Grade | C-1 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Cowan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cowan
Daughter · 1930 · age 10 · b. ~1920 · Missouri
★ You are viewing this record
Sibling
James Cowan
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cowan
Sibling · 1930 · age 21
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 — Jackson, Missouri
Open full size
1930 US Federal Census — Jackson, Missouri
Page Contents
33 people indexed on this census page (ia:1930:missouricensus00reel1200:0342)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | W Robert | 22 | son | None | Iowa |
| 52 | Julia Robert | 16 | daughter | None | Illinois |
| 53 | Mildred Robert | 12 | daughter | None | Illinois |
| 54 | John A. Russell | 54 | Head | Steel Worker | Missouri |
| 55 | Ella Russell | 54 | wife-H | None | Illinois |
| 56 | Joel Snodgrass | 35 | Head | Laborer | Missouri |
| 57 | Iona Snodgrass | 30 | wife-H | None | Missouri |
| 58 | Eva F. Snodgrass | 10 | daughter | None | Missouri |
| 59 | Elsie M. Snodgrass | 10 | daughter | None | Missouri |
| 60 | Nellie Snodgrass | 8 | daughter | None | Missouri |
| 61 | Thomas L. Newby | 46 | Head | Salesman | Missouri |
| 62 | Edith J. Newby | 45 | wife-H | None | Missouri |
| 63 | Lyman G. Newby | 20 | son | Salesman | Texas |
| 64 | Mildred G. Newby | 14 | daughter | None | Missouri |
| 65 | Patton Ruane | 38 | Head | Steelworker | Florida |
| 66 | Ethel Ruane | 24 | wife-H | None | Missouri |
| 67 | William O. Douglas | 22 | Head | Trimmer | Missouri |
| 68 | Emma Douglas | 18 | wife-H | None | Missouri |
| 69 | Ruth Storms | 35 | mother-in-law | None | Missouri |
| 70 | Mary Storms | 16 | sister-in-law | None | Missouri |
| 71 | Delbert Rich | 26 | Head | Under-Layer | Kansas |
| 72 | Jessie Rich | 26 | wife-H | None | Missouri |
| 73 | Phillip Rich | 4 | son | None | Missouri |
| 74 | Robert H. Cowan | 49 | Head | Painter | Alabama |
| 75 | Virginia B. Cowan | 45 | wife-H | None | Alabama |
| 76 | John H. Cowan | 21 | son | Cabinetmaker | Oklahoma |
| 77 | James D. Cowan | 12 | son | None | Missouri |
| 78 | Mary V. Cowan THIS PERSON | 10 | daughter | None | Missouri |
| 79 | C. Y. Barnett | 58 | Head | Barber | Kentucky |
| 80 | Pansy Barnett | 57 | wife-H | None | Iowa |
| 81 | William F. Crawford | 52 | Head | Laborer | Missouri |
| 82 | Birdie Crawford | 42 | wife-H | Grocer | Missouri |
| 83 | Frances Crawford | 13 | daughter | None | Iowa |
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)