MC
Mary Chase — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Whatcom-County, Washington
Our Model Tree links this Mary Chase across the 1920, 1930 and 1940 US Censuses in Whatcom-County, Washington (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 5-person household.
Age 48
b. ~1892
Female
Spouse
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Whatcom-County, Washington |
| Surname | Chase |
| Given Name | Mary M. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Maple Falls |
| 1935 Residence (County) | Whatcom |
| Additional Details | |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Maple Falls |
| Est. Birth Year | ~1892 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Chase | Head | — | 59 | ~1881 |
| Lowell Bell | Other | — | 85 | ~1855 |
| Lois Chase | Daughter | — | 15 | ~1925 |
| Mary Chase | Spouse | — | 48 | ~1892 |
| John Chase | Son | — | 12 | ~1928 |
Census Appearances
1920
Whatcom, Washington
Spouse, age 28
Whatcom, Washington · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chase |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Colorado |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Whatcom, Washington
Spouse, age 39
Whatcom, Washington · implied b. ~1891 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chase |
| Given Name | Mary M |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 21 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Whatcom-County, Washington
Spouse, age 48
Whatcom-County, Washington · implied b. ~1892 — 5 household members
| Surname | Chase |
| Given Name | Mary M. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Maple Falls |
| 1935 Residence (County) | Whatcom |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Chase across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Chase
Spouse · 1940 · age 48 · b. ~1892 · Washington
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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 — Whatcom-County, Washington
Open full size
1940 US Federal Census — Whatcom-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04369-00491)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Brenda E. Breithaupt | 11 | daughter | — | Washington |
| 2 | William C. Atkinson | 50 | Head | Road Maintainer | Kansas |
| 3 | Olive Breithaupt | 23 | daughter | — | Kansas |
| 4 | Gordon F. Breithaupt | 26 | son-in-law | Meat Cutter | Washington |
| 5 | Marlene Breithaupt | 3 | granddaughter | — | Washington |
| 6 | Dean Atkinson | 15 | son | — | Washington |
| 7 | Arthur L. Wortman | 27 | Head | Railroad Brakeman | Washington |
| 8 | Lyla Wortman | 26 | wife | — | Washington |
| 9 | Larry Wortman | 4 | son | — | Washington |
| 10 | Clinton Wortman | 1 | son | — | Washington |
| 11 | John Uhras | 39 | Head | Rock Breaker | Sweden |
| 12 | Ina Uhras | 28 | wife | — | Sweden |
| 13 | Alf Uhras | 7 | son | — | Washington |
| 14 | Lois Uhras | 5 | daughter | — | Washington |
| 15 | Harry E. Abrahams | 32 | Head | Truck Driver | Washington |
| 16 | Norma E. Abrahams | 25 | wife | — | Washington |
| 17 | Norman H. Abrahams | 7 | son | — | Washington |
| 18 | Albert W. Abrahams | 5 | son | — | Washington |
| 19 | Rosilyn Abrahams | 2 | daughter | — | Washington |
| 20 | Wayne F. Freyton | 24 | Head | Pole Worker | Kansas |
| 21 | Dorothy Freyton | 28 | wife | — | Minnesota |
| 22 | Allen Freyton | 1 | son | — | Oregon |
| 23 | John W. Breathing | 36 | Head | Rock Breaker | Pennsylvania |
| 24 | Helen E. Breathing | 30 | wife | — | Washington |
| 25 | Betty J. Breathing | 11 | daughter | — | Idaho |
| 26 | Jackie D. Breathing | 9 | son | — | Washington |
| 27 | Ronald R. Breathing | 7 | son | — | Washington |
| 28 | Jimmy L. Breathing | 4 | son | — | Washington |
| 29 | John W. Breathing | 3 | son | — | Washington |
| 30 | John C. Chase | 59 | Head | Road Work | Kansas |
| 31 | Mary M. Chase THIS PERSON | 48 | wife | — | Colorado |
| 32 | Lois J. Chase | 15 | daughter | — | Washington |
| 33 | John J. Chase | 12 | son | — | Washington |
| 34 | Lowell C. Bell | 85 | father-in-law | — | Iowa |
| 35 | Herschel H. Nugent | 42 | Head | Driller | Washington |
| 36 | Ellen B. Nugent | 43 | wife | — | Washington |
| 37 | Faye E. Nugent | 19 | daughter | — | Washington |
| 38 | Bruce V. Sexton | 35 | Head | Boo Shovel Operator | Washington |
| 39 | Viola L. Sexton | 36 | wife | — | Washington |
| 40 | Elmer B. Sexton | 15 | son | — | Washington |
Related Census Records
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)