JD
John Doyle — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-Castle-County, Delaware
Our Model Tree links this John Doyle across the 1910, 1920, 1930 and 1940 US Censuses in New-Castle-County, Delaware (XGBoost, ~Confirmed), with identified parents Maria & Maria — first a head (b.~1903), then head of a 3-person household.
Age 37
b. ~1903
Male
Head
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Castle-County, Delaware |
| Surname | Doyle |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Newark town |
| 1935 Residence (County) | New Castle |
| Additional Details | |
| Occupation | Plumber |
| Industry | University |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1375 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Occupation | Plumber |
| Township / Ward | Newark Town |
| Est. Birth Year | ~1903 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Doyle | Head | — | 37 | ~1903 |
| John Doyle | Son | — | 13 | ~1927 |
| Rosella Doyle | Spouse | — | 36 | ~1904 |
Census Appearances
1910
New Castle, …
Son, age 7
New Castle, Delaware · implied b. ~1903 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doyle |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1920
New Castle, …
Son, age 17
New Castle, Delaware · implied b. ~1903 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doyle |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Bookkeeper |
| Industry | Fibre Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
New Castle, …
Head, age 27
New Castle, Delaware · implied b. ~1903 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doyle |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Plumber |
| Industry | College |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 28 |
| Veteran | R |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
New-Castle-County, Delaware
Head, age 37
New-Castle-County, Delaware · implied b. ~1903 — 3 household members
| Surname | Doyle |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Newark town |
| 1935 Residence (County) | New Castle |
| Occupation | Plumber |
| Industry | University |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1375 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Doyle across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Maria Doyle (~0.92 confidence) and mother Maria Doyle (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Maria Doyle
b. ~1862
Source mother
● Household
· direct · ~0.92
Mother
Maria Doyle
b. ~1865
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Doyle
Head · 1940 · age 37 · b. ~1903 · Delaware
★ 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 — New-Castle-County, Delaware
Open full size
1940 US Federal Census — New-Castle-County, Delaware
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00546-00268)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clarence C. Richards | 67 | Head | Laborer | Delaware |
| 2 | Ella C. Richards | 71 | Wife | — | Maryland |
| 3 | Clarence B. Richards | 35 | Son | Laborer | Delaware |
| 4 | Margaret E. Richards | 32 | Daughter | Laborer | Delaware |
| 5 | George Tauneman | 51 | Head | Shipping Clerk | Germany |
| 6 | Gertrude Tauneman | 45 | Wife | — | Germany |
| 7 | Howard Tauneman | 19 | Daughter | Laborer | Germany |
| 8 | Ernest Tauneman | 18 | Son | Shipping Clerk | Germany |
| 9 | John H. Moore | 49 | Head | Clerk | Delaware |
| 10 | Elsie I. Moore | 50 | Wife | — | Maryland |
| 11 | Martha Jane Moore | 22 | Daughter | Secretary | Delaware |
| 12 | John H. Moore | 20 | Son | Clerk | Delaware |
| 13 | John J. Doyle THIS PERSON | 37 | Head | Plumber | Delaware |
| 14 | Rosella L. Doyle | 36 | Wife | — | Pennsylvania |
| 15 | John J. Jr. Doyle | 13 | Son | — | Delaware |
| 16 | George B. Lynch | 30 | Head | Tree Surgeon | Delaware |
| 17 | Dorothy R. Lynch | 26 | Wife | — | Pennsylvania |
| 18 | Ara Jean Lynch | 4 | Daughter | — | Delaware |
| 19 | Dorothy Lynch | 2 | Daughter | — | Delaware |
| 20 | William B. Jr. Derrickson | 33 | Head | Clerk | Delaware |
| 21 | Mary B. Derrickson | 25 | Wife | — | Delaware |
| 22 | William B. Iii Derrickson | 3 | Son | — | Delaware |
| 23 | Myrtle Bell | 48 | Mother-in-law | Laborer | Delaware |
| 24 | Albert H. Bell | 23 | Brother-in-law | Laborer | Delaware |
| 25 | Ruth G. Bell | 16 | Sister-in-law | Tube Maker | Delaware |
| 26 | Frank Crompton | 69 | Head | Press-Man | Maryland |
| 27 | Ella C. Crompton | 65 | Wife | — | Delaware |
| 28 | Leroy Crompton | 37 | Son | Shipping Clerk | Delaware |
| 29 | Corbit C. Crompton | 33 | Son | Assistant Post Master | Delaware |
| 30 | Charles E. Grubb | 47 | Head | Business Administrator | Delaware |
| 31 | Janet C. Grubb | 46 | Wife | — | Virginia |
| 32 | William E. Renshaw | 62 | Head | Mgr. | Delaware |
| 33 | Ada A. Renshaw | 59 | Wife | — | Delaware |
| 34 | Herman T. Renshaw | 36 | Son | Mgr. | Delaware |
| 35 | Stepha Kijewska | 28 | Head | Knitter | Pennsylvania |
| 36 | Stella Kijewska | 21 | Wife | Seamer | Pennsylvania |
| 37 | Frank N. Belling | 50 | Head | Pressman | Delaware |
| 38 | Marguerite S. Belling | 44 | Wife | — | Pennsylvania |
| 39 | Frank N. Jr. Belling | 17 | Son | — | Delaware |
| 40 | William J. Belling | 16 | Son | — | Delaware |
Related Census Records
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)