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John Dunlap — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lycoming-County, Pennsylvania
Our Model Tree links this John Dunlap across the 1920, 1930 and 1940 US Censuses in Lycoming-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Raymond & Mary — first a son (b.~1911), then head of a 7-person household.
Age 29
b. ~1911
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lycoming-County, Pennsylvania |
| Surname | Dunlap |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Williamsport |
| 1935 Residence (County) | Lycoming |
| Additional Details | |
| Occupation | Mill Hand |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 650 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Mill Hand |
| Township / Ward | Williamsport |
| Est. Birth Year | ~1911 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Mary Dunlap | Spouse | — | 47 | ~1893 |
| Helen Dunlap | Daughter | — | 8 | ~1932 |
| Charlotte Dunlap | Daughter | — | 19 | ~1921 |
| Gilbert Dunlap | Son | — | 20 | ~1920 |
| John Dunlap | Son | — | 29 | ~1911 |
| Raymond Dunlap | Head | — | 54 | ~1886 |
| Christian Dunlap | Son | — | 13 | ~1927 |
Census Appearances
1920
Lycoming, Pennsylvania
Son, age 9
Lycoming, Pennsylvania · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunlap |
| Given Name | John B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lycoming, Pennsylvania
Son, age 19
Lycoming, Pennsylvania · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunlap |
| Given Name | John B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lycoming-County, Pennsylvania
Son, age 29
Lycoming-County, Pennsylvania · implied b. ~1911 — 7 household members
| Surname | Dunlap |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Williamsport |
| 1935 Residence (County) | Lycoming |
| Occupation | Mill Hand |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 650 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| 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 John Dunlap across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Raymond Dunlap (~0.92 confidence) and mother Mary Dunlap (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Raymond Dunlap
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Mary Dunlap
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Dunlap
Son · 1940 · age 29 · b. ~1911 · Pennsylvania
★ You are viewing this record
Sibling
Gilbert Dunlap
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Christian Dunlap
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Dunlap
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Dunlap
Sibling · 1940 · age 8
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 — Lycoming-County, Pennsylvania
Open full size
1940 US Federal Census — Lycoming-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03567-00461)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lydia Danneker | 45 | Wife | — | Pennsylvania |
| 42 | Lorne Danneker | 10 | Son | — | Pennsylvania |
| 43 | Sanford Thuff | 30 | Head | Proprietor | Pennsylvania |
| 44 | Velma Thuff | 27 | Wife | — | Pennsylvania |
| 45 | Beverly Thuff | 4 | Daughter | — | Pennsylvania |
| 46 | Gustave Martin | 46 | Head | Finisher | Pennsylvania |
| 47 | Dorothy Martin | 39 | Wife | — | Pennsylvania |
| 48 | Charles Martin | 4 | Son | — | Pennsylvania |
| 49 | David Martin | 0 | Son | — | Pennsylvania |
| 50 | Warren Schreiter | 51 | Head | Foreman | Pennsylvania |
| 51 | Catherine Schreiter | 51 | Wife | — | Pennsylvania |
| 52 | Catherine L. Schreiter | 22 | Daughter | Twister | Pennsylvania |
| 53 | Raymond Dunlap | 54 | Head | Assistant | Pennsylvania |
| 54 | Mary Dunlap | 47 | Wife | — | Pennsylvania |
| 55 | John Dunlap THIS PERSON | 29 | Son | Mill Hand | Pennsylvania |
| 56 | Gilbert Dunlap | 20 | Son | New Worker | Pennsylvania |
| 57 | Charlotte Dunlap | 19 | Daughter | Trimmer | Pennsylvania |
| 58 | Christian Dunlap | 13 | Son | — | Pennsylvania |
| 59 | Helen Dunlap | 8 | Daughter | — | Pennsylvania |
| 60 | Meredith Mcmichael | 32 | Head | Laborer | Pennsylvania |
| 61 | Catherine Mcmichael | 13 | Daughter | — | Pennsylvania |
| 62 | Shirley Mcmichael | 35 | Daughter | — | Pennsylvania |
| 63 | Leona Mcmichael | 11 | Daughter | — | Pennsylvania |
| 64 | Lois Mcmichael | 9 | Daughter | — | Pennsylvania |
| 65 | Meredith Mcmichael | 7 | Daughter | — | Pennsylvania |
| 66 | Mary Mcmichael | 6 | Daughter | — | Pennsylvania |
| 67 | Carlene Mcmichael | 5 | Daughter | — | Pennsylvania |
| 68 | Nora Smith | 61 | Head | — | Pennsylvania |
| 69 | Dorothy Smith | 38 | Daughter | Motto Maker | Pennsylvania |
| 70 | William Smith | 32 | Son | Photographic Studio | Pennsylvania |
| 71 | Ann Smith | 36 | Daughter | Photographer | Pennsylvania |
| 72 | Edward Smith | 26 | Son | Laborer | Pennsylvania |
| 73 | Norman Riddel | 57 | Head | — | Pennsylvania |
| 74 | Willard Riddel | 50 | Brother | Fitter | Pennsylvania |
| 75 | Nancy Willits | 66 | Housekeeper | — | Pennsylvania |
| 76 | Walter Phillips | 25 | Head | Distributor | Pennsylvania |
| 77 | Mildred Phillips | 25 | Wife | — | Pennsylvania |
| 78 | Joan Phillips | 4 | Daughter | — | Pennsylvania |
| 79 | Joseph Orso | 40 | Head | Proprietor | Pennsylvania |
| 80 | Flora Orso | 38 | Wife | — | Pennsylvania |
Related Census Records
Pedigree Summary
John + 4 siblings
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)