MR
Mary Ritter — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lehigh-County, Pennsylvania
Our Model Tree links this Mary Ritter across the 1930 and 1940 US Censuses in Lehigh-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 6-person household.
Age 31
b. ~1909
Female
Daughter
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lehigh-County, Pennsylvania |
| Surname | Ritter |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Upper Macungie Township |
| 1935 Residence (County) | Lehigh |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Upper Macungie Township |
| Est. Birth Year | ~1909 |
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 |
|---|---|---|---|---|
| Edith Daubert | Spouse | — | 63 | ~1877 |
| Mary Ritter | Daughter | — | 31 | ~1909 |
| Martin Ritter | Other | — | 31 | ~1909 |
| Edwin Daubert | Head | — | 66 | ~1874 |
| Paul Daubert | Son | — | 29 | ~1911 |
| Suzanne Ritter | Other | — | 5 | ~1935 |
Census Appearances
1930
Lehigh, Pennsylvania
Daughter, age 20
Lehigh, Pennsylvania · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ritter |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Office Clerk |
| Industry | Dept Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lehigh-County, Pennsylvania
Daughter, age 31
Lehigh-County, Pennsylvania · implied b. ~1909 — 6 household members
| Surname | Ritter |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Upper Macungie Township |
| 1935 Residence (County) | Lehigh |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Ritter across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Ritter
Daughter · 1940 · age 31 · b. ~1909 · Pennsylvania
★ You are viewing this record
Sibling
Paul Daubert
Sibling · 1940 · age 29
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 — Lehigh-County, Pennsylvania
Open full size
1940 US Federal Census — Lehigh-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03548-00043)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kenneth S. Worley | 21 | Son | Linoleum Layer | Pennsylvania |
| 2 | Nora Worley | 70 | Head | — | Pennsylvania |
| 3 | Marvin J. A. Grammes | 63 | Head | Carpenter | Pennsylvania |
| 4 | Emma M. Grammes | 64 | Wife | — | Pennsylvania |
| 5 | Leroy E. Grammes | 23 | Son | New Worker | Pennsylvania |
| 6 | M. Clinton | 57 | Head | Huckster | Pennsylvania |
| 7 | Hattie M. Clinton | 55 | Wife | — | Pennsylvania |
| 8 | Stanley E. Clinton | 20 | Son | Linoleum Layer | Pennsylvania |
| 9 | Ernest E. Clinton | 27 | Son | Huckster | Pennsylvania |
| 10 | Mildred E. Clinton | 27 | Daughter-in-law | — | Pennsylvania |
| 11 | Roland E. Clinton | 8 | Grandson | — | Pennsylvania |
| 12 | George W. Moser | 41 | Head | Laborer | Pennsylvania |
| 13 | Beulah M. Moser | 38 | Wife | Presser | Pennsylvania |
| 14 | Claude W. Moser | 14 | Son | — | Pennsylvania |
| 15 | Dorothy E. Diehl | 19 | Head | Book-Keeper | Pennsylvania |
| 16 | Marjorie Diehl | 12 | Partner | Stitcher-Underwear | Pennsylvania |
| 17 | Carl E. Montgomery | 30 | Head | Chisel Work | West Virginia |
| 18 | Geraldine F. Montgomery | 25 | Wife | Seamstress | Pennsylvania |
| 19 | Neil E. Montgomery | 6 | Son | — | Pennsylvania |
| 20 | Norine J. Montgomery | 4 | Daughter | — | Pennsylvania |
| 21 | Patricia A. Montgomery | 2 | Daughter | — | Pennsylvania |
| 22 | George C. Snyder | 60 | Head | — | Pennsylvania |
| 23 | Ellen C. Snyder | 64 | Wife | — | Pennsylvania |
| 24 | Ernest P. Snyder | 24 | Son | Linoleum Layer | Pennsylvania |
| 25 | Viola A. Snyder | 25 | Daughter-in-law | — | Pennsylvania |
| 26 | Dale B. Snyder | 3 | Grandson | — | Pennsylvania |
| 27 | Lynn B. Snyder | 1 | Grandson | — | Pennsylvania |
| 28 | Edwin H. Daubert | 66 | Head | Farm Manager | Pennsylvania |
| 29 | Edith M. Daubert | 63 | Wife | House Work | Pennsylvania |
| 30 | Paul E. Daubert | 29 | Son | Electric Welder | Pennsylvania |
| 31 | Martin H. Ritter | 31 | Son-in-law | Editor-Newspaper | Pennsylvania |
| 32 | Mary E. Ritter THIS PERSON | 31 | Daughter | — | Pennsylvania |
| 33 | Suzanne M. Ritter | 5 | Grand-daughter | — | Pennsylvania |
| 34 | Morris D. Hackman | 42 | Head | Private Chauffeur | Pennsylvania |
| 35 | Anna S. Hackman | 40 | Wife | — | Pennsylvania |
| 36 | Richard S. Hackman | 18 | Son | Linoleum Layer | Pennsylvania |
| 37 | James A. Hackman | 15 | Son | — | Pennsylvania |
| 38 | Robert N. Moser | 52 | Head | Manager Office | Pennsylvania |
| 39 | Arthur J. Rhoads | 43 | Servant | Servant | Pennsylvania |
| 40 | Dorothy S. Rhoads | 42 | Servant | Servant | Pennsylvania |
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)