MS
Mary Spencer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nowata-County, Oklahoma
Our Model Tree links this Mary Spencer across the 1920, 1930 and 1940 US Censuses in Nowata-County, Oklahoma (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 3-person household.
Age 68
b. ~1872
Female
Head
Born: Kansas
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Nowata-County, Oklahoma |
| Surname | Spencer |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Kansas |
| 1935 Residence (City) | Nowata City |
| 1935 Residence (County) | Nowata |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Nowata City |
| Est. Birth Year | ~1872 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Spencer | Head | — | 68 | ~1872 |
| Mollie Spencer | Other | — | 36 | ~1904 |
| Paul Spencer | Son | — | 38 | ~1902 |
Census Appearances
1920
Nowata, Oklahoma
Spouse, age 47
Nowata, Oklahoma · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Nowata, Oklahoma
Spouse, age 58
Nowata, Oklahoma · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Spencer |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 21 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Nowata-County, Oklahoma
Head, age 68
Nowata-County, Oklahoma · implied b. ~1872 — 3 household members
| Surname | Spencer |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Kansas |
| 1935 Residence (City) | Nowata City |
| 1935 Residence (County) | Nowata |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Spencer across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Spencer
Head · 1940 · age 68 · b. ~1872 · Oklahoma
★ 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 — Nowata-County, Oklahoma
Open full size
1940 US Federal Census — Nowata-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03315-00769)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lorraine Hurn | 14 | Daughter | — | Oklahoma |
| 42 | Luther Stroud | 28 | Head | Civil Engineer | Oklahoma |
| 43 | Ethel B. Stroud | 25 | Wife | — | Kansas |
| 44 | John D. Beck | 53 | Head | Manager | Illinois |
| 45 | Helena Beck | 50 | Wife | — | Ohio |
| 46 | Mary L. Beck | 17 | Daughter | — | Oklahoma |
| 47 | John C. Beck | 20 | Son | — | Ohio |
| 48 | Robert S. Beck | 19 | Son | — | Oklahoma |
| 49 | Roy E. Mann | 26 | Head | Nite Man | Oklahoma |
| 50 | Claudene Mann | 20 | Wife | — | Oklahoma |
| 51 | Carolyn Mann | 1 | Daughter | — | Oklahoma |
| 52 | Maude C. Haley | 54 | Mother-in-law | Sewing | Missouri |
| 53 | E. C. R. Leinhart | 70 | Head | Grocer-Man | W. Virginia |
| 54 | Mamie Leinhart | 65 | Wife | — | W. Virginia |
| 55 | Myrtle Wyckoff | 48 | Head | — | Kansas |
| 56 | Charles Wyckoff | 45 | Son | Laborer | Kansas |
| 57 | Hubert Wyckoff | 23 | Son | Laborer | Kansas |
| 58 | P. J. Mobery | 40 | Head | Laborer | Kansas |
| 59 | Pearl Mobery | 39 | Wife | Cook | Arkansas |
| 60 | Leonard Mobery | 20 | Son | Clerk | Oklahoma |
| 61 | Pauline Mobery | 15 | Daughter | — | Oklahoma |
| 62 | William E. Fuller | 62 | Head | Bank Teller | Illinois |
| 63 | Lucy Fuller | 54 | Wife | — | Missouri |
| 64 | William (Jr.) Fuller | 21 | Son | — | Oklahoma |
| 65 | Margaret Fuller | 15 | Daughter | — | Oklahoma |
| 66 | Martha Lou Fuller | 13 | Daughter | — | Oklahoma |
| 67 | Lula Cauthorn | 77 | Mother-in-law | — | Virginia |
| 68 | Mary E. Spencer THIS PERSON | 68 | Head | — | Kansas |
| 69 | Paul Spencer | 38 | Son | Line Man | Kansas |
| 70 | Mollie Spencer | 36 | Daughter-in-law | — | Colorado |
| 71 | Rollie E. Smith | 70 | Head | Farmer | Indiana |
| 72 | Althea B. Smith | 72 | Wife | Housewife | Iowa |
| 73 | Raymond Mason | 31 | Head | Laborer | Kansas |
| 74 | Florence Mason | 31 | Wife | — | Kansas |
| 75 | Sammie Mason | 7 | Son | — | Kansas |
| 76 | Peggy Mason | 4 | Daughter | — | Kansas |
| 77 | Bonnie Mason | 2 | Daughter | — | Kansas |
| 78 | John H. Hepler | 56 | Head | Accountant | Pennsylvania |
| 79 | William G. Hepler | 17 | Son | — | Pennsylvania |
| 80 | Robert M. Hepler | 15 | Son | — | Pennsylvania |
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)