MP
Mary Post — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pocahontas-County, Iowa
Our Model Tree links this Mary Post across the 1920, 1930 and 1940 US Censuses in Pocahontas-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 10-person household.
Age 55
b. ~1885
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pocahontas-County, Iowa |
| Surname | Post |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lake Twp. |
| 1935 Residence (County) | Pocahontas |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Lake Twp |
| Est. Birth Year | ~1885 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marie Post | Daughter | — | 16 | ~1924 |
| Gerd Post | Son | — | 22 | ~1918 |
| Minnie Post | Daughter | — | 27 | ~1913 |
| Harney Post | Son | — | 11 | ~1929 |
| Herman Post | Son | — | 30 | ~1910 |
| Bert Post | Son | — | 31 | ~1909 |
| Fredrick Post | Son | — | 20 | ~1920 |
| Habbe Post | Head | — | 62 | ~1878 |
| Raymond Post | Son | — | 14 | ~1926 |
| Mary Post | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Pocahontas, Iowa
Spouse, age 34
Pocahontas, Iowa · implied b. ~1886 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Post |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Pocahontas, Iowa
Spouse, age 44
Pocahontas, Iowa · implied b. ~1886 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Post |
| Given Name | Mary B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Pocahontas-County, Iowa
Spouse, age 55
Pocahontas-County, Iowa · implied b. ~1885 — 10 household members
| Surname | Post |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lake Twp. |
| 1935 Residence (County) | Pocahontas |
| Highest Grade | No 8 |
| 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 Post across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Post
Spouse · 1940 · age 55 · b. ~1885 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Pocahontas-County, Iowa
Open full size
1940 US Federal Census — Pocahontas-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01191-00313)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William G Buske | 27 | Head | Farm Laborer | Iowa |
| 2 | Frank P Ricklefs | 47 | Head | Farmer | Illinois |
| 3 | Anna J Ricklefs | 43 | Wife | — | Nebraska |
| 4 | Eleanor K Ricklefs | 17 | Daughter | — | Iowa |
| 5 | Harlan F Ricklefs | 15 | Son | — | Iowa |
| 6 | Alvia Ann Ricklefs | 2 | Daughter | — | Iowa |
| 7 | Louis H Ricklefs | 39 | Head | Farmer | Illinois |
| 8 | Bertha A Ricklefs | 31 | Wife | — | Iowa |
| 9 | La Vonne F Ricklefs | 11 | Daughter | — | Iowa |
| 10 | Vivianne K Ricklefs | 9 | Daughter | — | Iowa |
| 11 | Lowell G Ricklefs | 7 | Son | — | Iowa |
| 12 | Erwin E Ricklefs | 4 | Son | — | Iowa |
| 13 | Herman E Ricklefs | 50 | Head | Farmer | Illinois |
| 14 | Margaret E Ricklefs | 48 | Wife | — | Iowa |
| 15 | Raymond A Ricklefs | 19 | Son | Farmer | Iowa |
| 16 | Dale E Ricklefs | 16 | Son | — | Iowa |
| 17 | Inea I Ricklefs | 9 | Daughter | — | Iowa |
| 18 | Earl H Spear | 24 | Head | Hired Manager | Iowa |
| 19 | Mildred M Spear | 23 | Wife | — | Iowa |
| 20 | Larry Lee Spear | 2 | Son | — | Iowa |
| 21 | Daniel J Hartnett | 64 | Head | — | Iowa |
| 22 | Bernadette A Hartnett | 32 | Daughter | — | Iowa |
| 23 | John J Hartnett | 32 | Son | Farmer | Iowa |
| 24 | Thomas B Mccormick | 71 | Brother-in-law | — | Iowa |
| 25 | Habbe Harms Post | 62 | Head | Farmer | Germany |
| 26 | Mary Post THIS PERSON | 55 | Wife | — | Iowa |
| 27 | Bert Post | 31 | Son | Farm Laborer | Iowa |
| 28 | Herman D Post | 30 | Son | Farm Laborer | Iowa |
| 29 | Minnie C Post | 27 | Daughter | — | Iowa |
| 30 | Gerd Post | 22 | Son | Farm Laborer | Iowa |
| 31 | Fredrick Jurgen Post | 20 | Son | Farm Laborer | Iowa |
| 32 | Marie S Post | 16 | Daughter | — | Iowa |
| 33 | Raymond Post | 14 | Son | — | Iowa |
| 34 | Harney Otto Post | 11 | Son | — | Iowa |
| 35 | Carl H Stamper | 28 | Head | Farmer | Iowa |
| 36 | Marietta C Stamper | 24 | Wife | — | Iowa |
| 37 | Franklin L Stamper | 1 | Son | — | Iowa |
| 38 | Henry H Janssen | 64 | Head | Farmer | Illinois |
| 39 | Greta E Janssen | 61 | Wife | — | Illinois |
| 40 | Herman C Janssen | 32 | Son | Farm Laborer | 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)