MH
Mary Hayden — 1940 US Census Record
Model Tree available1940 United States Federal Census · Douglas-County, Kansas
Our Model Tree links this Mary Hayden across the 1920, 1930 and 1940 US Censuses in Douglas-County, Kansas (XGBoost, ~Confirmed), with identified parents A & Mary — first a daughter (b.~1869), then head of a 7-person household.
Age 71
b. ~1869
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Kansas |
| Surname | Hayden |
| Given Name | Mary A |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Douglas |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Kansas |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Lawrence City |
| Est. Birth Year | ~1869 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lula Hayden | Spouse | — | 40 | ~1900 |
| Mabel Hayden | Daughter | — | 11 | ~1929 |
| Mary Hayden | Daughter | — | 71 | ~1869 |
| Ralph Hayden | Son | — | 7 | ~1933 |
| Albert Hayden | Head | — | 37 | ~1903 |
| Leo Hayden | Son | — | 9 | ~1931 |
| Adrian Hayden | Other | — | 84 | ~1856 |
Census Appearances
1920
Douglas, Kansas
Spouse, age 51
Douglas, Kansas · implied b. ~1869 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayden |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Douglas, Kansas
Other, age 61
Douglas, Kansas · implied b. ~1869 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayden |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 28 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Douglas-County, Kansas
Daughter, age 71
Douglas-County, Kansas · implied b. ~1869 — 7 household members
| Surname | Hayden |
| Given Name | Mary A |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Douglas |
| Highest Grade | No 8 |
| 1935 Residence | Kansas |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Hayden across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father A Hayden (~0.44 confidence) and mother Mary Hayden (~0.44 confidence) and mother Lula Hayden (~0.22 confidence) and mother Lula Hayden (~0.50 confidence) and father Albert Hayden (~0.50 confidence) and father Albert Hayden (~0.22 confidence). The pedigree spans 3 generations with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.39
Father
A Hayden
b. ~1856
Source father>father
● Household
· direct · ~0.44
Mother
Mary Hayden
b. ~1869
Source father>mother
● Household
· direct · ~0.44
Mother
Lula Hayden
b. ~1900
Source father>mother>mother
● Household
· direct · ~0.22
Mother
Lula Hayden
b. ~1900
Source mother
● Household
· direct · ~0.5
Father
Albert Hayden
b. ~1903
Source father
● Household
· direct · ~0.5
Father
Albert Hayden
b. ~1903
Source father>mother>father
● Household
· direct · ~0.22
This person
Anchor record
Mary Hayden
Daughter · 1940 · age 71 · b. ~1869 · Kansas
★ You are viewing this record
Sibling
Leo Hayden
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Hayden
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Hayden
Sibling · 1940 · age 7
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 — Douglas-County, Kansas
Open full size
1940 US Federal Census — Douglas-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01229-00874)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred Mull | 6 | daughter | — | Kansas |
| 2 | Kathryn Mull | 5 | daughter | — | Kansas |
| 3 | Marilyn Mull | 5 | daughter | — | Kansas |
| 4 | Hazel Zimmerman | 31 | head | Frycook | Kansas |
| 5 | Lottie Mae Zimmerman | 32 | wife | — | Iowa |
| 6 | Violet Zimmerman | 7 | daughter | — | Kansas |
| 7 | Amelia A Zimmerman | 1 | daughter | — | Kansas |
| 8 | Ralph Hubbell | 41 | head | Patrolman | Missouri |
| 9 | Marjorie J Hubbell | 37 | wife | — | Kansas |
| 10 | Virginia G Hubbell | 16 | daughter | — | Kansas |
| 11 | Ralph G Hubbell | 14 | son | — | Kansas |
| 12 | David E Hubbell | 1 | son | — | Kansas |
| 13 | Albert C Hayden | 37 | head | Mechanic | Missouri |
| 14 | Lula D Hayden | 40 | wife | — | Nebraska |
| 15 | Mabel L Hayden | 11 | daughter | — | Kansas |
| 16 | Leo K Hayden | 9 | son | — | Kansas |
| 17 | Ralph W Hayden | 7 | son | — | Kansas |
| 18 | Adrian L Hayden | 84 | father | — | Iowa |
| 19 | Mary A Hayden THIS PERSON | 71 | daughter | — | New York |
| 20 | Charles G Kluver | 61 | head | Section Foreman | Kansas |
| 21 | Josie D Kluver | 62 | wife | — | Kansas |
| 22 | Gilbert E D Kunkle | 67 | head | Brakeman | Virginia |
| 23 | Dwight E Kunkle | 38 | son | Operator | Missouri |
| 24 | Mildred Kunkle | 37 | daughter-in-law | — | Kansas |
| 25 | Ralph E Kunkle | 5 | grandson | — | Kansas |
| 26 | Ronald D Kunkle | 2 | grandson | — | Kansas |
| 27 | James C B Miller | 45 | head | Mechanic | Kansas |
| 28 | Elizabeth E Miller | 42 | wife | Taper | Kansas |
| 29 | Elizabeth L Miller | 22 | daughter | — | Kansas |
| 30 | James L Gulley | 44 | head | Section Hand | Missouri |
| 31 | Blanch M Gulley | 44 | wife | — | Kansas |
| 32 | Herman C Fearing | 46 | head | Laborer | Kansas |
| 33 | Anna Q Fearing | 38 | wife | — | Kansas |
| 34 | Edgar D Sargent | 35 | head | Concrete Worker | Missouri |
| 35 | Frances May Sargent | 38 | wife | — | Missouri |
| 36 | Alberta Sargent | 11 | daughter | — | Kansas |
| 37 | Leo Rose | 25 | head | Taxi Driver | Kansas |
| 38 | Laurena Rose | 23 | wife | — | Missouri |
| 39 | Thomas G Kluver | 27 | head | Operator | Kansas |
| 40 | Fern Kluver | 27 | wife | — | Kansas |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 2 parents
~0.5
Gen 2 · 2 grandparents
~0.44
Gen 3 · 2 great-grandparents
~0.22
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)