RJ
Ralph Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-Castle-County, Delaware
Our Model Tree links this Ralph Johnson across the 1920, 1930 and 1940 US Censuses in New-Castle-County, Delaware (XGBoost, ~Confirmed), with identified parents Emma & Jacob — first a head (b.~1904), then head of a 7-person household.
Age 36
b. ~1904
Male
Head
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Castle-County, Delaware |
| Surname | Johnson |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | R.D. 8 Representative District 8 |
| 1935 Residence (County) | New Castle |
| Additional Details | |
| Occupation | Salesman |
| Industry | Retail Produce |
| Class of Worker | OA |
| Hours Worked | 40 |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Occupation | Salesman |
| Township / Ward | Rd 8 Representative District 8 |
| Est. Birth Year | ~1904 |
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 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Ethel Johnson | Daughter | — | 10 | ~1930 |
| Mary Johnson | Daughter | — | 6 | ~1934 |
| Ralph Johnson | Head | — | 36 | ~1904 |
| Orville Johnson | Son | — | 9 | ~1931 |
| Joseph Johnson | Son | — | 3 | ~1937 |
| Ralph Johnson | Son | — | 1 | ~1939 |
| Velma Johnson | Spouse | — | 27 | ~1913 |
Census Appearances
1920
New Castle, …
Son, age 16
New Castle, Delaware · implied b. ~1904 — 15 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ralph E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
New Castle, …
Son, age 26
New Castle, Delaware · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ralph |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Delaware |
| Age at First Marriage | 26 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Clay Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | 71 |
| Veteran | No |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
New-Castle-County, Delaware
Head, age 36
New-Castle-County, Delaware · implied b. ~1904 — 7 household members
| Surname | Johnson |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | R.D. 8 Representative District 8 |
| 1935 Residence (County) | New Castle |
| Occupation | Salesman |
| Industry | Retail Produce |
| Class of Worker | OA |
| Hours Worked | 40 |
| Highest Grade | No 5 |
| 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 Ralph Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Emma Johnson (~0.92 confidence) and father Jacob Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Emma Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
Father
Jacob Johnson
b. ~1871
Source father
● Household
· direct · ~0.92
This person
Anchor record
Ralph Johnson
Head · 1940 · age 36 · b. ~1904 · 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-t0627-00546-00130)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Montague | 66 | Head | — | Pennsylvania |
| 2 | Julia Montague | 62 | Wife | — | Pennsylvania |
| 3 | Gerald Montague | 21 | Son | Teller | Pennsylvania |
| 4 | Francis Montague | 25 | Son | Groom | Pennsylvania |
| 5 | Catherine Montague | 22 | Daughter | Marker | Delaware |
| 6 | Miriam Montague | 2 | Granddaughter | — | Delaware |
| 7 | Benjamin Cameransi | 12 | Lodger | — | Maryland |
| 8 | George Francis Murphy | 11 | Lodger | — | Delaware |
| 9 | James Benjamin Joline | 7 | Lodger | — | New Jersey |
| 10 | Ralph Johnson THIS PERSON | 36 | Head | Salesman | Delaware |
| 11 | Velma Johnson | 27 | Wife | — | Delaware |
| 12 | Ethel Johnson | 10 | Daughter | — | Delaware |
| 13 | Orville Johnson | 9 | Son | — | Delaware |
| 14 | Mary Johnson | 6 | Daughter | — | Delaware |
| 15 | Joseph Johnson | 3 | Son | — | Delaware |
| 16 | Ralph Johnson | 1 | Son | — | Delaware |
| 17 | Walter Mendenhall | 56 | Head | Farmer | Delaware |
| 18 | Irene Mendenhall | 52 | Sister | — | Delaware |
| 19 | Mildred Fleming | 14 | Grandniece | — | Delaware |
| 20 | Frank Dennison | 58 | Head | Farmer | Delaware |
| 21 | Mary R. Dennison | 60 | Wife | — | Delaware |
| 22 | Howard Dennison | 32 | Son | Farmer | Delaware |
| 23 | Anna Dennison | 22 | Daughter | — | Delaware |
| 24 | Frank Jr. Dennison | 16 | Son | — | Delaware |
| 25 | Anna J. Dennison | 86 | Mother | — | Delaware |
| 26 | Marvin Miller | 48 | Hired hand | Laborer | Pennsylvania |
| 27 | Benjamin Johnston | 38 | Head | Carpenter | Delaware |
| 28 | Agnes Johnston | 35 | Wife | — | New York |
| 29 | Barbara Johnston | 1 | Daughter | — | Delaware |
| 30 | Kennard Sweed | 37 | Head | Manager | Pennsylvania |
| 31 | Erma Sweed | 33 | Wife | — | Pennsylvania |
| 32 | Delores Sweed | 8 | Daughter | — | Pennsylvania |
| 33 | Elizabeth Sweed | 2 | Daughter | — | Delaware |
| 34 | William Wotherspoon | 50 | Head | Gardner | Scotland |
| 35 | Hannah Wotherspoon | 42 | Wife | — | England |
| 36 | Joseph W. Chinn | 35 | Head | Officer | Virginia |
| 37 | Catherine Chinn | 32 | Wife | — | Florida |
| 38 | Marjorie A. Chinn | 6 | Daughter | — | Delaware |
| 39 | Sally Douglas Chinn | 3 | Daughter | — | Delaware |
| 40 | Jessie Pultorak | 26 | Servant | Houseman | Massachusetts |
Related Census Records
Pedigree Summary
Ralph
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)