MP
Mary Peck — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Canyon-County, Idaho
Our Model Tree links this Mary Peck across the 1930 and 1940 US Censuses in Canyon-County, Idaho (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Female
Daughter
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Canyon-County, Idaho |
| Surname | Peck |
| Given Name | Mary D. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Nampa City |
| 1935 Residence (County) | Canyon |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Home |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Occupation | Housekeeper |
| Township / Ward | Nampa 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 |
|---|---|---|---|---|
| Mary Peck | Daughter | — | 23 | ~1917 |
| Vernon Peck | Son | — | 4 | ~1936 |
| Somewhere Not Given Here | Other | — | — | |
| Margery Peck | Spouse | — | 47 | ~1893 |
| Vernon Peck | Head | — | 49 | ~1891 |
| Helen Peck | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Canyon, Idaho
Daughter, age 13
Canyon, Idaho · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peck |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Idaho |
| Occupation | none |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Canyon-County, Idaho
Daughter, age 23
Canyon-County, Idaho · implied b. ~1917 — 6 household members
| Surname | Peck |
| Given Name | Mary D. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Nampa City |
| 1935 Residence (County) | Canyon |
| Occupation | Housekeeper |
| Industry | Home |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 Peck across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Peck
Daughter · 1940 · age 23 · b. ~1917 · Idaho
★ You are viewing this record
Sibling
Helen Peck
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vernon Peck
Sibling · 1940 · age 4
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 — Canyon-County, Idaho
Open full size
1940 US Federal Census — Canyon-County, Idaho
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00742-00461)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frances Dooley | 14 | Daughter | — | Idaho |
| 2 | Raymond C. Liedtke | 45 | Head | Tinsmith | S. Dakota |
| 3 | Della O. Liedtke | 37 | Wife | Housewife | N. Dakota |
| 4 | Jean Liedtke | 16 | Daughter | — | Wisconsin |
| 5 | Charles Liedtke | 7 | Son | — | N. Dakota |
| 6 | Vernon C. Peck | 49 | Head | General Inspector | Kansas |
| 7 | Margery Peck | 47 | Wife | Saleslady | Idaho |
| 8 | Helen Peck | 20 | Daughter | File Clerk | Idaho |
| 9 | Mary D. Peck THIS PERSON | 23 | Daughter | Housekeeper | Idaho |
| 10 | Vernon Peck | 4 | Son | — | Idaho |
| 11 | Somewhere (Not Given Here) | None | W | — | — |
| 12 | Winfield Mcconnell | 30 | Head | Meat Cutter | Idaho |
| 13 | Doris Mcconnell | 26 | Wife | Sales Clerk | Idaho |
| 14 | Laurence Mcconnell | 7 | Son | — | Idaho |
| 15 | Gerald Mcconnell | 2 | Son | — | Idaho |
| 16 | Frank Wicker | 59 | Head | Street Commissioner | Missouri |
| 17 | Della Wicker | 54 | Wife | Housewife | Missouri |
| 18 | Arthur Burton | 61 | Head | Foreman | Oregon |
| 19 | Edith E. Burton | 56 | Wife | Housewife | Washington |
| 20 | Mary Jones | 70 | Head | Housewife | Tennessee |
| 22 | Edward F. Hall | 69 | Head | Farmer | Iowa |
| 23 | Daisy Hall | 58 | Wife | Housewife | Wisconsin |
| 24 | Grace Hall | 57 | Daughter | Housework | Wisconsin |
| 25 | Luann Hall | 15 | Niece | Bookkeeper | Wisconsin |
| 26 | Meridith Nichols | 54 | Head | Seed Buyer | Utah |
| 27 | Cora Nichols | 52 | Wife | Housewife | Wyoming |
| 28 | Wanda Thick | 26 | Daughter | Nurse | Wyoming |
| 29 | Terry W. Thick | 2 | Grandson | — | Idaho |
| 30 | Lyle Haffaker | 20 | Nephew | Farmer | Idaho |
| 31 | Rein W. Werner | 59 | Head | Carpenter | Minnesota |
| 32 | Minna Werner | 57 | Wife | Housewife | Germany |
| 33 | Irene Werner | 30 | Daughter | Bookkeeper | N. Dakota |
| 34 | Louis Werner | 21 | Son | Ticket Agent | Idaho |
| 35 | Rollie Shelman | 33 | Head | Switchman | Kansas |
| 36 | Marie Shelman | 29 | Wife | Nurse R.N. | Arkansas |
| 37 | Roger Shelman | 8 | Son | — | Idaho |
| 38 | William Stines | 39 | Head | Brakeman | Ohio |
| 39 | Thelma Stines | 32 | Wife | Housewife | Idaho |
| 40 | Lavonne Stines | 13 | Daughter | — | Idaho |
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)