MK
Mary King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pocahontas-County, Iowa
Our Model Tree links this Mary King across the 1920, 1930 and 1940 US Censuses in Pocahontas-County, Iowa (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a daughter (b.~1913), then head of a 8-person household.
Age 27
b. ~1913
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pocahontas-County, Iowa |
| Surname | King |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Fonda |
| 1935 Residence (County) | Pocahontas |
| Additional Details | |
| Occupation | Teacher |
| Industry | School |
| Class of Worker | W |
| Hours Worked | 35 |
| Income (1939) | 675 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Teacher |
| Township / Ward | Fonda |
| Est. Birth Year | ~1913 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary King | Daughter | — | 27 | ~1913 |
| Gertrude King | Daughter | — | 23 | ~1917 |
| Edward King | Head | — | 61 | ~1879 |
| Joseph King | Son | — | 29 | ~1911 |
| Gilbert King | Son | — | 17 | ~1923 |
| Ralph King | Son | — | 20 | ~1920 |
| Edmond King | Son | — | 25 | ~1915 |
| Francis King | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Pocahontas, Iowa
Daughter, age 7
Pocahontas, Iowa · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Pocahontas, Iowa
Daughter, age 17
Pocahontas, Iowa · implied b. ~1913 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| 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
Pocahontas-County, Iowa
Daughter, age 27
Pocahontas-County, Iowa · implied b. ~1913 — 8 household members
| Surname | King |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Fonda |
| 1935 Residence (County) | Pocahontas |
| Occupation | Teacher |
| Industry | School |
| Class of Worker | W |
| Hours Worked | 35 |
| Income (1939) | 675 |
| 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 King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward King (~0.92 confidence) and father Edward King (~0.92 confidence) and father Edward King (~0.92 confidence) and mother Francis King (~0.92 confidence) and mother Francis King (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward King
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Edward King
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Edward King
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Francis King
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Francis King
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary King
Daughter · 1940 · age 27 · b. ~1913 · Iowa
★ You are viewing this record
Sibling
Ralph King
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph King
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude King
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edmond King
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gilbert King
Sibling · 1940 · age 17
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 — 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-t0627-01191-00045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harold B. Blizzard | 43 | Head | Retail Merchant | Iowa |
| 2 | Lena Blizzard | 38 | Wife | — | Iowa |
| 3 | Barbara Blizzard | 14 | Daughter | — | Iowa |
| 4 | Harry B. Blizzard | 12 | Son | — | Iowa |
| 5 | Claude D. Ogden | 61 | Head | Harness & Shoe Repair | Kansas |
| 6 | Dorathea Ogden | 23 | Daughter | Teacher | Iowa |
| 7 | Darrell Ogden | 16 | Son | Rural Teacher | Iowa |
| 8 | George Hurless | 90 | Father-in-law | — | Illinois |
| 9 | Philip Murphy | 74 | Head | — | Illinois |
| 10 | Harriet Murphy | 76 | Wife | — | Illinois |
| 11 | Edward L. King | 61 | Head | Farmer | Arkansas |
| 12 | Francis King | 55 | Wife | — | Iowa |
| 13 | Joseph King | 29 | Son | Gasoline Station | Iowa |
| 14 | Mary King THIS PERSON | 27 | Daughter | Teacher | Iowa |
| 15 | Edmond King | 25 | Son | Meat Market & Grocery | Iowa |
| 16 | Gertrude King | 23 | Daughter | Waitress | Iowa |
| 17 | Ralph King | 20 | Son | Product Man | Iowa |
| 18 | Gilbert King | 17 | Son | — | Iowa |
| 19 | Alex B. Patterson | 56 | Head | Retail Drug Store | Iowa |
| 20 | Sadie Patterson | 50 | Wife | — | Iowa |
| 21 | Guy Straight | 71 | Head | Manager Of Co-Op Farm | Illinois |
| 22 | Ida Straight | 70 | Wife | — | Illinois |
| 23 | John H. Collins | 57 | Head | Waiter In Cafe | Iowa |
| 24 | Caroline Collins | 53 | Wife | Waitress In Cafe | Iowa |
| 25 | Harold Collins | 20 | Son | Book Keeper | Iowa |
| 26 | Lydia Neal | 72 | Head | Housework | Illinois |
| 27 | Bertha Horner | 62 | Sister | Housework | Iowa |
| 28 | John Mccafferty | 74 | Head | — | New York |
| 29 | Johanna Mccafferty | 74 | Wife | — | Iowa |
| 30 | Thomas Mccafferty | 47 | Son | — | Iowa |
| 31 | Sam Mckinney | 80 | Head | — | Illinois |
| 32 | Ida V. Mckinney | 80 | Wife | — | Ohio |
| 33 | Fred B. Becker | 58 | Head | — | Germany |
| 34 | Callie Becker | 55 | Wife | — | Iowa |
| 35 | Ronald A. Collins | 75 | Head | — | Iowa |
| 36 | Russel S. Hoover | 51 | Head | Lumber Yard Manager | Illinois |
| 37 | Florence Hoover | 51 | Wife | Book Keeper | Iowa |
| 38 | Dora Hoover | 27 | Son | Truck Driver | Iowa |
| 39 | Nora M. Speilman | 70 | Law | — | Iowa |
| 40 | Sophia Leib | 75 | Head | — | New York |
Pedigree Summary
Mary + 5 siblings
Gen 1 · 5 parents
~0.92
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)