MK
Mary Knapp — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Schuylkill, Pennsylvania
Our Model Tree links this Mary Knapp across the 1910 and 1920 US Censuses in Schuylkill, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1908), then head of a 7-person household.
Age 12
b. ~1908
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Schuylkill, Pennsylvania |
| Surname | Knapp |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Shenandoah Pa Borough |
| Est. Birth Year | ~1908 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anna Knapp | Daughter | — | 14 | ~1906 |
| Rita Knapp | Daughter | — | 7 | ~1913 |
| Charles Knapp | Son | — | 1 | ~1919 |
| Mary Knapp | Daughter | — | 12 | ~1908 |
| Mary Knapp | Spouse | — | 38 | ~1882 |
| Charles Knapp | Head | — | 38 | ~1882 |
| Catherine Knapp | Daughter | — | 9 | ~1911 |
Census Appearances
1910
Schuylkill, Pennsylvania
Daughter, age 2
Schuylkill, Pennsylvania · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knapp |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Schuylkill, Pennsylvania
Daughter, age 12
Schuylkill, Pennsylvania · implied b. ~1908 — 7 household members
| Surname | Knapp |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 (1910 and 1920) in Schuylkill, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Knapp
Daughter · 1920 · age 12 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
Rita Knapp
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Knapp
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Knapp
Sibling · 1920 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Knapp
Sibling · 1920 · age 9
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 — Schuylkill, Pennsylvania
Open full size
1920 US Federal Census — Schuylkill, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1652unit:0142)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Roy Balliett | 29 | Head | Electrician | Pennsylvania |
| 2 | Elizabeth Balliett | 28 | Wife | — | Pennsylvania |
| 3 | Elizabeth Balliett | 2 | Daughter | — | Pennsylvania |
| 4 | Patrick Slaugh | 35 | Head | Laborer | Pennsylvania |
| 5 | Winifred Slaugh | 32 | Wife | — | Pennsylvania |
| 6 | John Slaugh | 9 | Son | — | Pennsylvania |
| 7 | Anna Gilpin | 69 | Head | — | Wales |
| 8 | John Gilpin | 32 | Son | Laborer | Pennsylvania |
| 9 | John Cleary | 47 | Head | Manager | Pennsylvania |
| 10 | Sallie Cleary | 34 | Wife | — | Pennsylvania |
| 11 | Lewis Lowry | 56 | Head | Superintendent | Pennsylvania |
| 12 | Catherine Lowry | 43 | Wife | — | Pennsylvania |
| 13 | Lewis Lowry | 28 | Son | Laborer | Pennsylvania |
| 14 | Ernest Lowry | 20 | Son | Laborer | Pennsylvania |
| 15 | Ruth Lowry | 15 | Daughter | — | Pennsylvania |
| 16 | Roy Lowry | 8 | Son | — | Pennsylvania |
| 17 | Ada Mae Lowry | 20 | Daughter-in-law | — | Pennsylvania |
| 18 | Charles Slowett | 50 | Head | Mine Foreman | Germany |
| 19 | Louisa Slowett | 44 | Wife | — | Pennsylvania |
| 20 | Minnie Slowett | 22 | Daughter | Saleslady | Pennsylvania |
| 21 | Herbert Slowett | 21 | Son | Engineer | Pennsylvania |
| 22 | Charles Knapp | 38 | Head | Foreman | Pennsylvania |
| 23 | Mary Knapp | 38 | Wife | — | Pennsylvania |
| 24 | Anna Knapp | 14 | Daughter | — | Pennsylvania |
| 25 | Mary Knapp THIS PERSON | 12 | Daughter | — | Pennsylvania |
| 26 | Catherine Knapp | 9 | Daughter | — | Pennsylvania |
| 27 | Rita Knapp | 7 | Daughter | — | Pennsylvania |
| 28 | Charles Knapp | 1 | Son | — | Pennsylvania |
| 29 | William Hofstetter | 37 | Head | Fireman | Pennsylvania |
| 30 | Bertha Hofstetter | 37 | Wife | — | Pennsylvania |
| 31 | Zelma Hofstetter | 17 | Daughter | — | Pennsylvania |
| 32 | Ralph Hofstetter | 10 | Son | — | Pennsylvania |
| 33 | Paul Hofstetter | 0 | Son | — | Pennsylvania |
| 34 | James Quinn | 49 | Head | Banker | Pennsylvania |
| 35 | Anna Quinn | 43 | Wife | — | Pennsylvania |
| 36 | Lorey Sheehy | 26 | Boarder | General Nurse | Pennsylvania |
| 37 | William Mccullough | 62 | Head | Collector | Ireland |
| 38 | Ellen Mccullough | 52 | Wife | — | Pennsylvania |
| 39 | Martin Mccullough | 23 | Son | — | Pennsylvania |
| 40 | Margaret Mccullough | 19 | Daughter | — | Pennsylvania |
| 41 | Margaret Mccullough | 52 | Sister-in-law | — | Ireland |
| 42 | Adam Brown | 52 | Head | Fire Boss | Scotland |
| 43 | Margaret Brown | 51 | Wife | — | Pennsylvania |
| 44 | John Brown | 25 | Son | Laborer | Pennsylvania |
| 45 | Arthur Brown | 17 | Son | Laborer | Pennsylvania |
| 46 | Earl Brown | 15 | Son | — | Pennsylvania |
| 47 | Sterling Brown | 8 | Son | — | Pennsylvania |
| 48 | Patrick Butler | 49 | Head | Laborer | England |
| 49 | Mary Butler | 41 | Wife | — | Ireland |
| 50 | John Clancy | 36 | Boarder | Laborer | Ireland |
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)