JS
John Shaw — 1940 US Census Record
Model Tree available1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this John Shaw across the 1920, 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed), with identified parents Benjamin & Sarah — first a head (b.~1893), then head of a 5-person household.
Age 47
b. ~1893
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Shaw |
| Given Name | John L |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Occupation | Private Secretary |
| Industry | H. S. H. Authority |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2369 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Private Secretary |
| Township / Ward | Frederick |
| Est. Birth Year | ~1893 |
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 |
|---|---|---|---|---|
| Elizabeth Shaw | Daughter | — | 17 | ~1923 |
| John Shaw | Head | — | 47 | ~1893 |
| John Shaw | Son | — | 13 | ~1927 |
| Joseph Shaw | Son | — | 20 | ~1920 |
| Mary Shaw | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Frederick, Maryland
Son, age 26
Frederick, Maryland · implied b. ~1894 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaw |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Foreman |
| Industry | Brush Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Frederick, Maryland
Head, age 37
Frederick, Maryland · implied b. ~1893 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaw |
| Given Name | John D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 27 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Foreman |
| Industry | Brush factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10,000 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Head, age 47
Frederick-County, Maryland · implied b. ~1893 — 5 household members
| Surname | Shaw |
| Given Name | John L |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick |
| 1935 Residence (County) | Frederick |
| Occupation | Private Secretary |
| Industry | H. S. H. Authority |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2369 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Shaw across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Benjamin Shaw (~0.92 confidence) and mother Sarah Shaw (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Benjamin Shaw
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Sarah Shaw
b. ~1867
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Shaw
Head · 1940 · age 47 · b. ~1893 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Frederick-County, Maryland
Open full size
1940 US Federal Census — Frederick-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01548-00512)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John A Clark | 18 | son | Farmer | Maryland |
| 2 | William H Muir | 46 | head | Handy Man | Maryland |
| 3 | Laurel M Muir | 22 | wife | — | Maryland |
| 4 | William D Muir | 7 | son | — | Maryland |
| 5 | Thomas E Muir | 5 | son | — | Maryland |
| 6 | Robert M Muir | 4 | son | — | Maryland |
| 7 | Hubert E Muir | 1 | son | — | Maryland |
| 8 | John L Shaw THIS PERSON | 47 | head | Private Secretary | Maryland |
| 9 | Mary R Shaw | 47 | wife | — | Maryland |
| 10 | Joseph M Shaw | 20 | son | — | Maryland |
| 11 | Elizabeth V Shaw | 17 | daughter | — | Maryland |
| 12 | John L Jr Shaw | 13 | son | — | Maryland |
| 13 | Samuel H Rosenstock | 55 | head | Canner | Maryland |
| 14 | Henrietta R Rosenstock | 43 | wife | — | N. Carolina |
| 15 | Pearl M Haughman | 67 | mother-in-law | — | Virginia |
| 16 | Thomas Sapling | 15 | ward | — | Germany |
| 17 | Edwin B Zimmerman | 56 | head | Odd Jobs | Maryland |
| 18 | Mary Alice Zimmerman | 45 | wife | — | Maryland |
| 19 | Betty Louise Zimmerman | 9 | daughter | — | Maryland |
| 20 | William D Darby | 60 | head | Paper Hanger | Maryland |
| 21 | Della D Darby | 51 | wife | — | Maryland |
| 22 | Marion B Darby | 24 | son | Paperhanger | Maryland |
| 23 | Howard B Taylor | 65 | head | Stone Cutter | Maryland |
| 24 | Flora A Taylor | 65 | wife | — | Maryland |
| 25 | Howard B Jr Taylor | 27 | son | Dentist | Maryland |
| 26 | Emmon E Sanner | 50 | head | Farmer | Maryland |
| 27 | Ada M Sanner | 48 | wife | — | Maryland |
| 28 | Chaney M Sanner | 20 | son | — | Maryland |
| 29 | Roy W Cramer | 40 | laborer | Farmer | Maryland |
| 30 | Roy L Crum | 55 | head | Dairyman | Maryland |
| 31 | Agatha O Crum | 51 | wife | — | Maryland |
| 32 | Paul L Crum | 33 | son | Plant Manager | Maryland |
| 33 | Charles Kintz | 83 | friend | — | Maryland |
| 34 | Hetty Lintner | 76 | mother-in-law | — | Maryland |
| 35 | Frank Garrett | 77 | uncle | — | Maryland |
| 36 | J. Craig Campbell | 52 | head | Plant Manager | Missouri |
| 37 | Nora J Campbell | 51 | wife | — | Arkansas |
| 38 | Howard M Main | 50 | head | Superintendent | Maryland |
| 39 | Ada B Main | 51 | wife | — | Maryland |
| 40 | Mary E Baker | 53 | sister-in-law | — | Maryland |
Pedigree Summary
John
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)