MY
Mary York — 1930 US Census Record
Model Tree available1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Mary York across the 1920, 1930 and 1940 US Censuses in Polk, Iowa (XGBoost, ~Confirmed), with identified parents Lester & Lester — first a daughter (b.~1917), then head of a 5-person household.
Age 13
b. ~1917
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | York |
| Given Name | Mary V |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Janet York | Daughter | — | 10 | ~1920 |
| Barbara York | Daughter | — | 3 | ~1927 |
| Lester York | Head | — | 43 | ~1887 |
| Mary York | Daughter | — | 13 | ~1917 |
| Marie York | Other | — | 34 | ~1896 |
Census Appearances
1920
Polk, Iowa
Daughter, age 3
Polk, Iowa · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | York |
| Given Name | Mary Virginia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Daughter, age 13
Polk, Iowa · implied b. ~1917 — 5 household members
| Surname | York |
| Given Name | Mary V |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Daughter, age 23
Polk-County, Iowa · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | York |
| Given Name | M. Virginia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | School Teacher |
| Industry | Public school |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 1000 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| 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 York across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lester York (~0.92 confidence) and father Lester York (~0.92 confidence) and mother Marie York (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lester York
b. ~1897
Source father
● Household
· direct · ~0.92
Father
Lester York
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Marie York
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary York
Daughter · 1930 · age 13 · b. ~1917 · Iowa
★ You are viewing this record
Sibling
Barbara York
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janet York
Sibling · 1930 · age 10
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 — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
43 people indexed on this census page (ia:1930:iowacensus00reel673:0534)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert E Fisher | 53 | Head | Clerk | Germany-Saxony |
| 2 | Mary Fisher | 53 | Wife-H | — | Iowa |
| 3 | Everett Fisher | 14 | Son | — | Iowa |
| 4 | Marvin Fisher | 12 | Son | — | Iowa |
| 5 | Jean Fisher | 5 | Daughter | — | Iowa |
| 6 | Harold Conner | 28 | Head | Sign Painter | Iowa |
| 7 | Elizabeth Conner | 25 | Wife-H | None | Iowa |
| 8 | Margaret M Conner | 5 | Daughter | None | Iowa |
| 9 | Josephine L Conner | 3 | Daughter | None | Iowa |
| 10 | Lester E York | 43 | Head | Proprietor | Iowa |
| 11 | Marie E York | 34 | Wife-H | — | Iowa |
| 12 | Mary V York THIS PERSON | 13 | Daughter | — | Iowa |
| 13 | Janet B York | 10 | Daughter | — | Iowa |
| 14 | Barbara J York | 3 | Daughter | — | Iowa |
| 15 | Lyle W Scholey | 38 | Head | Proprietor | Iowa |
| 16 | Ada M Scholey | 38 | Wife-H | — | Iowa |
| 17 | Harold L Scholey | 15 | Son | — | Iowa |
| 18 | W. E. Allen | 62 | Head | None | Iowa |
| 19 | Elizabeth Allen | 58 | Wife-H | None | Iowa |
| 20 | Edwin C Carlson | 40 | Head | Clerk | Iowa |
| 21 | Emma V Carlson | 39 | Wife-H | None | Wisconsin |
| 22 | Ruth E Carlson | 14 | Daughter | — | Iowa |
| 23 | Helen L Carlson | 13 | Daughter | — | Iowa |
| 24 | Harold E Carlson | 11 | Son | — | Iowa |
| 25 | Dorothy C Carlson | 10 | Daughter | — | Iowa |
| 26 | Robert D Carlson | 7 | Son | — | Wisconsin |
| 27 | Edward Menson | 58 | Head | Letter Carrier | Iowa |
| 28 | Myra Menson | 50 | Wife-H | None | Iowa |
| 29 | Florence Menson | 17 | Daughter | None | Iowa |
| 30 | Reuben E Busby | 69 | Head | Proprietor | Ohio |
| 31 | Dora E Busby | 59 | Wife-H | None | Kansas |
| 32 | John E Busby | 28 | Son | Office Clerk | Iowa |
| 33 | Blanche M Johnson | 30 | Daughter | Inspector | Iowa |
| 34 | Evelyn L Johnson | 15 | Grand daughter | — | Iowa |
| 35 | J. H. Fischer | 84 | Head | — | Germany-Saxony |
| 36 | Ernestine Fischer | 80 | Wife-H | — | Germany-Saxony |
| 37 | Arthur J Porter | 48 | Head | Plumber'S Helper | Iowa |
| 38 | Katherine Porter | 34 | Wife-H | — | Massachusetts |
| 39 | Veronica E Porter | 7 | Daughter | — | Illinois |
| 40 | Robert J Porter | 4 | Son | — | Pennsylvania |
| 41 | Robert Maley | 40 | Head | Mechanic | Nebraska |
| 42 | Helen L Maley | 24 | Wife-H | None | Iowa |
| 43 | Jack E. Maley | 1 | Son | — | Iowa |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 3 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)