MC
Mary Carson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Weld-County, Colorado
Our Model Tree links this Mary Carson across the 1930 and 1940 US Censuses in Weld-County, Colorado (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Weld-County, Colorado |
| Surname | Carson |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Greeley city |
| 1935 Residence (County) | Weld |
| Additional Details | |
| Occupation | Saleslady |
| Industry | Retail Merchandise |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 565 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Saleslady |
| Township / Ward | Greeley City |
| Est. Birth Year | ~1917 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Iona Carson | Spouse | — | 55 | ~1885 |
| D Carson | Daughter | — | 16 | ~1924 |
| Blanche Carson | Daughter | — | 28 | ~1912 |
| Arthur Carson | Head | — | 55 | ~1885 |
| Ruth Carson | Daughter | — | 11 | ~1929 |
| Mary Carson | Daughter | — | 23 | ~1917 |
Census Appearances
1930
Weld, Colorado
Daughter, age 13
Weld, Colorado · implied b. ~1917 — 15 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Weld-County, Colorado
Daughter, age 23
Weld-County, Colorado · implied b. ~1917 — 6 household members
| Surname | Carson |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Greeley city |
| 1935 Residence (County) | Weld |
| Occupation | Saleslady |
| Industry | Retail Merchandise |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 565 |
| Highest Grade | C 2 |
| 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 Carson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Carson
Daughter · 1940 · age 23 · b. ~1917 · Colorado
★ You are viewing this record
Sibling
Blanche Carson
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Carson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
D Carson
Sibling · 1940 · age 16
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 — Weld-County, Colorado
Open full size
1940 US Federal Census — Weld-County, Colorado
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00482-00798)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty Shepherd | 13 | Daughter | — | Colorado |
| 2 | Mary Ann Shepherd | 10 | Daughter | — | Colorado |
| 3 | George Shepherd | 7 | Son | — | Colorado |
| 4 | Bobby Shepherd | 5 | Son | — | Colorado |
| 5 | Barbara Shepherd | 3 | Daughter | — | Colorado |
| 6 | Billy Shepherd | 2 | Son | — | Colorado |
| 8 | Opha E. Brake | 68 | Head | — | West Virginia |
| 9 | Lillie E. Brake | 68 | Wife | — | Maryland |
| 10 | William Oster | 58 | Head | Farmer | England |
| 11 | Hannah Oster | 44 | Wife | — | England |
| 12 | Keith Nicodemus | 31 | Head | Salesman | Kansas |
| 13 | Virna Nicodemus | 31 | Wife | — | Kansas |
| 14 | John Shupe | 19 | Head | Truck Driver | Illinois |
| 15 | Maxine Shupe | 21 | Wife | Stenographer | Missouri |
| 16 | Noralene Shupe | 1 | Daughter | — | Colorado |
| 17 | Joseph L. Cardwell | 51 | Father-in-law | — | Unknown |
| 18 | Nora A. Cardwell | 48 | Mother-in-law | — | Missouri |
| 19 | Arthur A. Carson | 55 | Head | Bookkeeper | Kansas |
| 20 | Iona D. Carson | 55 | Wife | — | Kansas |
| 21 | Blanche Carson | 28 | Daughter | Saleslady | Colorado |
| 22 | Mary A. Carson THIS PERSON | 23 | Daughter | Saleslady | Colorado |
| 23 | D. Jean Carson | 16 | Daughter | — | Colorado |
| 24 | Ruth E. Carson | 11 | Daughter | — | Colorado |
| 27 | Jesse D. Rockwell | 43 | Head | Meat Cutter | Nebraska |
| 28 | Emma Rockwell | 42 | Wife | — | Nebraska |
| 29 | Eileen Rockwell | 16 | Daughter | — | Colorado |
| 30 | Doris Rockwell | 15 | Daughter | — | Colorado |
| 31 | Samuel Thomas | 79 | Head | — | Illinois |
| 32 | Edwin J. Hoyt | 40 | Head | Carpenter | Colorado |
| 33 | Patricia Ann Hoyt | 7 | Daughter | — | Colorado |
| 34 | Edwin John Hoyt | 3 | Son | — | Colorado |
| 35 | Annette R. Hoyt | 2 | Daughter | — | Colorado |
| 36 | Raymond Hoyt | 33 | Brother | Plasterer | Colorado |
| 37 | Adolph Smith | 57 | Head | Caretaker | Sweden |
| 38 | Carrie Smith | 58 | Wife | — | Sweden |
| 39 | Marylin Smith | 23 | Daughter | Stenographer | Colorado |
| 40 | Genevieve Smith | 22 | Daughter | File Clerk | Colorado |
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)