JF
John Fritz — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this John Fritz across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Fritz |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | New worker |
| Class of Worker | PW |
| Hours Worked | 104 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | New Worker |
| Township / Ward | Saugus |
| Est. Birth Year | ~1920 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Edward Fritz | Son | — | 11 | ~1929 |
| William Fritz | Head | — | 52 | ~1888 |
| John Fritz | Son | — | 20 | ~1920 |
| Pauline Wallstedt | Daughter | — | 22 | ~1918 |
| Richard Fritz | Son | — | 14 | ~1926 |
Census Appearances
1930
Essex, Massachusetts
Son, age 10
Essex, Massachusetts · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fritz |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New York |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 20
Essex-County, Massachusetts · implied b. ~1920 — 5 household members
| Surname | Fritz |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Essex |
| Occupation | New worker |
| Class of Worker | PW |
| Hours Worked | 104 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 John Fritz across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Fritz
Son · 1940 · age 20 · b. ~1920 · Massachusetts
★ You are viewing this record
Sibling
Edward Fritz
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Fritz
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Wallstedt
Sibling · 1940 · age 22
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01590-00272)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice G. Gordon | 55 | Head | — | Canada-Eng |
| 2 | Einar A. Wallstedt | 57 | Lodger | Painter | Sweden |
| 3 | Caroline A. Pompey | 25 | Lodger | — | Massachusetts |
| 4 | Carol Marshall | 12 | Lodger | — | Massachusetts |
| 5 | Carl A. Sawyer | 32 | Head | Heir | Massachusetts |
| 6 | Edith M. Sawyer | 30 | Wife | — | Connecticut |
| 7 | Carl A. Jr. Sawyer | 3 | Son | — | Massachusetts |
| 8 | Geo. A. Jr. Elder | 35 | Head | Machine Operator | Massachusetts |
| 9 | Lilly Elder | 35 | Wife | — | England |
| 10 | Arthur H. Elder | 4 | Son | — | Massachusetts |
| 11 | Gerald B. Elder | 3 | Son | — | Massachusetts |
| 12 | Sandra J. Elder | 1 | Daughter | — | Massachusetts |
| 13 | Flora L. Russell | 79 | Head | — | Maine |
| 14 | Forrest E. Russell | 54 | Son | Shipper | Massachusetts |
| 15 | William M. Fritz | 52 | Head | — | Massachusetts |
| 16 | John A. Fritz THIS PERSON | 20 | Son | New Worker | Massachusetts |
| 17 | Richard H. Fritz | 14 | Son | — | Massachusetts |
| 18 | Edward L. Fritz | 11 | Son | — | Massachusetts |
| 19 | Pauline F. Wallstedt | 22 | Daughter | Stitcher | Massachusetts |
| 20 | Lawrence W. Bates | 41 | Head | Pipe-Fitter | Canada-Eng |
| 21 | Nellie Bates | 37 | Wife | — | Canada-Eng |
| 22 | Andrew J. Bates | 16 | Son | — | Canada-Eng |
| 23 | Lawrence W. Bates | 14 | Son | — | Massachusetts |
| 24 | Geraldine T. Bates | 7 | Daughter | — | Massachusetts |
| 25 | William J. Bates | 4 | Son | — | Massachusetts |
| 26 | James E. Champoux | 28 | Head | Asst. Buyer | Massachusetts |
| 27 | Catherine A. Champoux | 28 | Wife | — | Massachusetts |
| 28 | John E. Champoux | 5 | Son | — | Massachusetts |
| 29 | James J. Champoux | 3 | Son | — | Massachusetts |
| 30 | Roger T. Conant | 24 | Head | Farmer | Massachusetts |
| 31 | Mildred M. Conant | 22 | Wife | Telephone Operator | Massachusetts |
| 32 | Joseph Monti | 41 | Head | Die-Maker | Massachusetts |
| 33 | Mary Monti | 36 | Wife | — | Massachusetts |
| 34 | Rose A. Monti | 19 | Daughter | Dressmaker | Massachusetts |
| 35 | Josephine F. Monti | 18 | Daughter | Stenographer | Massachusetts |
| 36 | Thomas A. Monti | 15 | Son | — | Massachusetts |
| 37 | Dorothy Monti | 12 | Daughter | — | Massachusetts |
| 38 | Andrew J. Monti | 11 | Son | — | Massachusetts |
| 39 | George P. Albee | 64 | Head | 40 | Maine |
| 40 | Mildred M. Albee | 53 | Wife | — | Maine |
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)