MT
Mary Tyler — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Mary Tyler across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1884), then head of a 4-person household.
Age 56
b. ~1884
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Tyler |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Four Mile Township |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Four Mile Township |
| Est. Birth Year | ~1884 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Tyler | Daughter | — | 11 | ~1929 |
| Jessie Tyler | Head | — | 66 | ~1874 |
| Loretta Tyler | Daughter | — | 15 | ~1925 |
| Mary Tyler | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Polk, Iowa
Spouse, age 36
Polk, Iowa · implied b. ~1884 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tyler |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | England |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Spouse, age 46
Polk, Iowa · implied b. ~1884 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tyler |
| Given Name | Mary G |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | England |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Spouse, age 56
Polk-County, Iowa · implied b. ~1884 — 4 household members
| Surname | Tyler |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Four Mile Township |
| 1935 Residence (County) | Polk |
| Highest Grade | H 2 |
| 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 Tyler across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Tyler
Spouse · 1940 · age 56 · b. ~1884 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
15 people indexed on this census page (nara:1940:m-t0627-01192-00554)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jessie Tyler | 66 | Head | Tradesman | Iowa |
| 42 | Mary Tyler THIS PERSON | 56 | Wife | — | Iowa |
| 43 | Loretta Tyler | 15 | Daughter | — | Iowa |
| 44 | Alice Tyler | 11 | Daughter | — | Iowa |
| 45 | Ben Tyler | 25 | Head | Steel Worker | Iowa |
| 46 | Marie Tyler | 23 | Wife | — | Iowa |
| 47 | Ronald Tyler | 6 | Son | — | Iowa |
| 48 | Betty Tyler | 5 | Daughter | — | Iowa |
| 49 | Huber Tyler | 3 | Son | — | Iowa |
| 50 | Kathlene Tyler | 1 | Daughter | — | Iowa |
| 51 | Claud Beatie | 38 | Head | Farmer | Iowa |
| 52 | Opal Beatie | 38 | Wife | — | Iowa |
| 53 | Lavern Beatie | 19 | Son | — | Iowa |
| 54 | Patsy Ann Beatie | 2 | Daughter | — | Iowa |
| 55 | Lavery Lowe | 59 | Head | Disabled | Iowa |
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)