MK
Mary Knapp — 1920 US Census Record
Linked across censuses1920 United States Federal Census · None, None
Our Model Tree links this Mary Knapp across the 1920 and 1930 US Censuses (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 9-person household.
Age 1
b. ~1919
Female
Daughter
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | None, None |
| Surname | Knapp |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | — |
| Additional Details | |
| Mother Tongue | Illinois |
| Est. Birth Year | ~1919 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lula Knapp | Daughter | — | 10 | ~1910 |
| Mary Knapp | Daughter | — | 1 | ~1919 |
| Robert Knapp | Son | — | 8 | ~1912 |
| Joseph Knapp | Head | — | 39 | ~1881 |
| Nancy Knapp | Spouse | — | 38 | ~1882 |
| Helen Knapp | Daughter | — | 13 | ~1907 |
| Moses Knapp | Son | — | 4 | ~1916 |
| George Knapp | Son | — | 16 | ~1904 |
| John Knapp | Son | — | 5 | ~1915 |
Census Appearances
1920
None, None
Daughter, age 1
None, None · implied b. ~1919 — 9 household members
| Surname | Knapp |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Mother Tongue | Illinois |
1930
Beaverhead, Montana
Daughter, age 12
Beaverhead, Montana · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knapp |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
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 Knapp across 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Knapp
Daughter · 1920 · age 1 · b. ~1919 · None
★ You are viewing this record
Sibling
Robert Knapp
Sibling · 1920 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Knapp
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lula Knapp
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Knapp
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Knapp
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Moses Knapp
Sibling · 1920 · 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
1920 US Federal Census — None, None
Open full size
1920 US Federal Census — None, None
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu376unit:0154)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bertie H. | 32 | Wife | — | Illinois |
| 2 | Charles L. | 9 | Son | — | Illinois |
| 3 | Harold H. | 7 | Son | — | Illinois |
| 4 | Hazel M. | 6 | Daughter | — | Illinois |
| 5 | Colleen L. | 3 | Daughter | — | Illinois |
| 6 | Cecil B. | 1 | Daughter | — | Illinois |
| 7 | John A. Winston | 47 | Head | Head Sawyer | Illinois |
| 8 | Ava Winston | 37 | Wife | — | Illinois |
| 9 | Pearl Winston | 10 | Daughter | — | Illinois |
| 10 | Alice M. Winston | 9 | Daughter | — | Illinois |
| 11 | Ruth Winston | 6 | Daughter | — | Illinois |
| 12 | John L. Winston | 4 | Son | — | Illinois |
| 13 | Tiffany L. Winston | 1 | Daughter | — | Illinois |
| 14 | James Uvery | 65 | Father-in-law | — | Illinois |
| 15 | Cleveland Foster | 20 | Nephew | Fireman | Illinois |
| 16 | James L. Puckett | 28 | Head | Laborer | Missouri |
| 17 | B. Puckett | 24 | Wife | — | Illinois |
| 18 | Florence V. Puckett | 7 | Daughter | — | Missouri |
| 19 | Ivy G. Puckett | 4 | Daughter | — | Missouri |
| 20 | Jefferson T. Cox | 41 | Head | Laborer Farm | Illinois |
| 21 | Nellie H. Cox | 41 | Wife | — | Illinois |
| 22 | Lewis J. Cox | 17 | Son | Yes | — |
| 23 | Mary J. Cox | 14 | Daughter | Yes | — |
| 24 | Nina J. Cox | 12 | Daughter | Yes | — |
| 25 | Eva M. Cox | 8 | Daughter | — | — |
| 26 | Virgil M. Stines | 23 | Head | Firey|Fireman | Illinois |
| 27 | Helen E. Stines | 21 | Wife | — | Illinois |
| 28 | Mary M. Stines | 1 | Daughter | — | Illinois |
| 29 | Martha Stines | 63 | Mother | — | Illinois |
| 30 | Allie E. Mcdaniel | 36 | Head | Operator | Kentucky |
| 31 | Ruby N. Mcdaniel | 24 | Wife | — | Tennessee |
| 32 | Arasta H. Mcdaniel | 5 | Daughter | — | Tennessee |
| 33 | Ruth G. Mcdaniel | 1 | Daughter | — | Illinois |
| 34 | Edward O. Brickley | 35 | Head | Laborer | Tennessee |
| 35 | Julia V. Brickley | 29 | Wife | — | Missouri |
| 36 | Velia M. Brickley | 12 | Daughter | Yes | — |
| 37 | Chester H. Brickley | 7 | Son | — | — |
| 38 | Earl E. Brickley | 5 | Son | — | — |
| 39 | Gilbert Clutts | 65 | Head | Laborer | Illinois |
| 40 | Melvina M. Clutts | 41 | Wife | — | Missouri |
| 41 | Harry L. Howard | 38 | Boarder | Laborer | Missouri |
| 42 | Joseph S. H. Knapp | 39 | Head | Laborer | Illinois |
| 43 | Nancy E. Knapp | 38 | Wife | — | Illinois |
| 44 | George Knapp | 16 | Son | Yes | — |
| 45 | Helen Knapp | 13 | Daughter | Yes | — |
| 46 | Lula M. Knapp | 10 | Daughter | Yes | — |
| 47 | Robert Knapp | 8 | Son | — | — |
| 48 | John Knapp | 5 | Son | — | — |
| 49 | Moses Knapp | 4 | Son | — | — |
| 50 | Mary Knapp THIS PERSON | 1 | Daughter | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)