MS
Mary Snyder — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Prince-William-County, Virginia
Our Model Tree links this Mary Snyder across the 1930 and 1940 US Censuses in Prince-William-County, Virginia (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Female
Daughter
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Prince-William-County, Virginia |
| Surname | Snyder |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Brentsville Mag. Dist. |
| 1935 Residence (County) | Prince William |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Brentsville Mag Dist |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Snyder | Daughter | — | 11 | ~1929 |
| Francis Snyder | Daughter | — | 3 | ~1937 |
| Virginia Snyder | Daughter | — | 12 | ~1928 |
| Lydia Snyder | Daughter | — | 1 | ~1939 |
| William Snyder | Head | — | 52 | ~1888 |
| Fred Snyder | Son | — | 5 | ~1935 |
| Harry Snyder | Son | — | 7 | ~1933 |
| William Snyder | Son | — | 10 | ~1930 |
| Delano Snyder | Son | — | 5 | ~1935 |
| Lydia Snyder | Spouse | — | 32 | ~1908 |
Census Appearances
1930
Prince William, …
Daughter, age 1
Prince William, Virginia · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Snyder |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | Tennessee |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Prince-William-County, Virginia
Daughter, age 11
Prince-William-County, Virginia · implied b. ~1929 — 10 household members
| Surname | Snyder |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Brentsville Mag. Dist. |
| 1935 Residence (County) | Prince William |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Snyder across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Snyder
Daughter · 1940 · age 11 · b. ~1929 · Virginia
★ You are viewing this record
Sibling
Harry Snyder
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delano Snyder
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Snyder
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Snyder
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lydia Snyder
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Snyder
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Snyder
Sibling · 1940 · age 12
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 — Prince-William-County, Virginia
Open full size
1940 US Federal Census — Prince-William-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04286-00046)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Marshall | 2 | Daughter | — | Virginia |
| 42 | Everett Marshall | 53 | Head | Farmer | Virginia |
| 43 | Viola Marshall | 47 | Wife | — | Virginia |
| 44 | Hampton Herndon | 58 | Head | Farmer | Virginia |
| 45 | William Roberts | 25 | In law | Carpenter | Virginia |
| 46 | Freda Roberts | 23 | Daughter | — | Virginia |
| 47 | William Snyder | 52 | Head | Farmer | Virginia |
| 48 | Lydia Snyder | 32 | Wife | — | Illinois |
| 49 | Virginia Snyder | 12 | Daughter | — | Virginia |
| 50 | Mary Snyder THIS PERSON | 11 | Daughter | — | Virginia |
| 51 | William Snyder | 10 | Son | — | Virginia |
| 52 | Harry Snyder | 7 | Son | — | Virginia |
| 53 | Fred Snyder | 5 | Son | — | Virginia |
| 54 | Delano Snyder | 5 | Son | — | Virginia |
| 55 | Francis Snyder | 3 | Daughter | — | Virginia |
| 56 | Lydia Snyder | 1 | Daughter | — | Virginia |
| 57 | Lodge Crump | 58 | Head | Farmer | Virginia |
| 58 | Florence Calvin | 64 | Head | Farmer | Virginia |
| 59 | Floyd Bumbry | 23 | Head | Laborer | Virginia |
| 60 | Zelia M. Green | 78 | Head | Farmer | Virginia |
| 61 | M'Duff Green | 49 | Son | Farmer | Virginia |
| 62 | Winifred Green | 41 | Wife | — | Virginia |
| 63 | M'Duff Jr. Green | 19 | Son | Laborer | Virginia |
| 64 | Allen Green | 16 | Son | — | Virginia |
| 65 | Mary Green | 14 | Daughter | — | Virginia |
| 66 | Montague Green | 9 | Son | — | Virginia |
| 67 | Samuel Green | 4 | Son | — | Virginia |
| 68 | Mary Brown | 53 | Daughter | Supt. Sewing Room | Virginia |
| 69 | Harriet Davis | 51 | Daughter | — | Virginia |
| 70 | William Roberts | 66 | Lodger | — | Virginia |
| 71 | Lewis Roberts | 42 | Head | — | Virginia |
| 72 | Cora Roberts | 37 | Wife | — | Virginia |
| 73 | Roy Roberts | 7 | Son | — | Virginia |
| 74 | Lillie Roberts | 5 | Daughter | — | Virginia |
| 75 | James Roberts | 3 | Son | — | Virginia |
| 76 | Cornelius Redding | 72 | Head | Farmer | New Jersey |
| 77 | Aurelia Redding | 66 | Wife | — | Virginia |
| 78 | Elizabeth Redding | 28 | Daughter | — | Virginia |
| 79 | Clifford Redding | 17 | Son | Laborer | Virginia |
| 80 | Joseph Redding | 32 | Head | Farmer | Virginia |
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)