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Helen Mason — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marquette-County, Michigan
Our Model Tree links this Helen Mason across the 1930 and 1940 US Censuses in Marquette-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marquette-County, Michigan |
| Surname | Mason |
| Given Name | Helen J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Powell |
| 1935 Residence (County) | Marquette |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | S 5 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Powell |
| Est. Birth Year | ~1929 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Inez Mason | Daughter | — | 14 | ~1926 |
| Judith Mason | Daughter | — | 16 | ~1924 |
| Marie Mason | Spouse | — | 35 | ~1905 |
| Blaine Mason | Head | — | 47 | ~1893 |
| Helen Mason | Daughter | — | 11 | ~1929 |
| Eunice Mason | Daughter | — | 6 | ~1934 |
| James Mason | Son | — | 2 | ~1938 |
Census Appearances
1930
Marquette, Michigan
Daughter, age 1
Marquette, Michigan · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Marquette-County, Michigan
Daughter, age 11
Marquette-County, Michigan · implied b. ~1929 — 7 household members
| Surname | Mason |
| Given Name | Helen J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Powell |
| 1935 Residence (County) | Marquette |
| Income (1939) | 0 |
| Highest Grade | S 5 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Helen Mason across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Mason
Daughter · 1940 · age 11 · b. ~1929 · Michigan
★ You are viewing this record
Sibling
James Mason
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eunice Mason
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Judith Mason
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Inez Mason
Sibling · 1940 · age 14
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 — Marquette-County, Michigan
Open full size
1940 US Federal Census — Marquette-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01787-00481)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward E. Rasmussen | 41 | Head | Electric Engineer | Michigan |
| 42 | Leona M. Rasmussen | 36 | Wife | — | Michigan |
| 43 | Shirley L. Rasmussen | 12 | Daughter | — | Michigan |
| 44 | Edward J. Rasmussen | 10 | Son | — | Michigan |
| 45 | Carol J. Rasmussen | 7 | Daughter | — | Michigan |
| 46 | Joe J. Neubauer | 65 | Head | Truck Driver | Wisconsin |
| 47 | Nona H. Neubauer | 56 | Wife | Head Waitress | Michigan |
| 48 | Anne M. Neubauer | 11 | Daughter | — | Wisconsin |
| 49 | Howard P. Pierce | 40 | Head | Time Keeper | Michigan |
| 50 | Alma L. Pierce | 35 | Wife | Assistant House Keeper | Michigan |
| 51 | Ivan R. Ryan | 50 | Head | Teamster | Michigan |
| 52 | Mayme O. Ryan | 38 | Wife | Club Cook | Michigan |
| 53 | Ivan A. Jr. Ryan | 11 | Son | — | Michigan |
| 54 | William M. Ryan | 9 | Son | — | Michigan |
| 55 | Onni Peura | 42 | Lodger | Guide | Finland |
| 56 | William Marlowe | 49 | Lodger | Truck Driver | Michigan |
| 57 | Blaine B. Mason | 47 | Head | Gardener | Michigan |
| 58 | Marie O. Mason | 35 | Wife | — | Michigan |
| 59 | Judith A. Mason | 16 | Daughter | — | Michigan |
| 60 | Inez M. Mason | 14 | Daughter | — | Michigan |
| 61 | Helen J. Mason THIS PERSON | 11 | Daughter | — | Michigan |
| 62 | Eunice G. Mason | 6 | Daughter | — | Michigan |
| 63 | James B. Mason | 2 | Son | — | Michigan |
| 64 | Hector A. Cardinal | 33 | Head | Stone Keeper | Michigan |
| 65 | Beatrice Cardinal | 31 | Wife | — | Michigan |
| 66 | Dolores M. Cardinal | 11 | Daughter | — | Michigan |
| 67 | Janith B. Cardinal | 9 | Daughter | — | Michigan |
| 68 | Ronald H. Jensen | 43 | Head | Plumber | Norway |
| 69 | Myrtle E. Jensen | 37 | Wife | — | Wisconsin |
| 70 | Jean C. Jensen | 15 | Daughter | — | Michigan |
| 71 | Thelma M. Jensen | 14 | Daughter | — | Michigan |
| 72 | Betty L. Jensen | 12 | Daughter | — | Michigan |
| 73 | Walter J. Hosey | 35 | Head | School Bus Driver | Michigan |
| 74 | Mildred M. Hosey | 25 | Wife | — | Michigan |
| 75 | Walter J. Hosey | 2 | Son | — | Michigan |
| 76 | Anne S. Larson | 29 | Lodger | Maid | Michigan |
| 77 | Mary H. Laurila | 41 | Lodger | Waitress | Finland |
| 78 | Ann Canhu | 45 | Lodger | Maid | Finland |
| 79 | Cora L. Thompson | 35 | Lodger | Waitress | Wisconsin |
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)