FL
Frank Lynch — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Frank Lynch across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents James & Thomas — first a head (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Lynch |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Phila City |
| 1935 Residence (County) | Phila |
| Additional Details | |
| Occupation | Machinist |
| Industry | Ball Bearing |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Machinist |
| Township / Ward | Phila City |
| Est. Birth Year | ~1905 |
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 Frank | Age | Birth yr |
|---|---|---|---|---|
| John Lynch | Son | — | 9 | ~1931 |
| Frank Lynch | Head | — | 35 | ~1905 |
| Betty Lynch | Spouse | — | 31 | ~1909 |
| Kathleen Lynch | Daughter | — | 1 | ~1939 |
| Dolores Lynch | Daughter | — | 7 | ~1933 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 15
Philadelphia, Pennsylvania · implied b. ~1905 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 26
Philadelphia, Pennsylvania · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Electrician |
| Industry | Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Head, age 35
Philadelphia-County, Pennsylvania · implied b. ~1905 — 5 household members
| Surname | Lynch |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Phila City |
| 1935 Residence (County) | Phila |
| Occupation | Machinist |
| Industry | Ball Bearing |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H-3 |
| 1935 Residence | Same place |
| 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 Frank Lynch across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Lynch (~0.92 confidence) and father Thomas Lynch (~0.92 confidence) and mother Mary Lynch (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Lynch
b. ~1863
Source father
● Household
· direct · ~0.92
Father
Thomas Lynch
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Mary Lynch
b. ~1863
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Lynch
Head · 1940 · age 35 · b. ~1905 · Pennsylvania
★ 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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03720-00398)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Loden | 18 | Daughter | Inspector | Pennsylvania |
| 2 | Phillip Pfaff | 64 | Head | Weaver | Germany |
| 3 | Amelia Pfaff | 57 | Wife | — | Germany |
| 4 | Dalibor Schroeder | 59 | Head | Electrician | Germany |
| 5 | Olga Schroeder | 32 | Daughter | — | Pennsylvania |
| 6 | Dalibor Jr. Schroeder | 30 | Son | School Teacher | Pennsylvania |
| 7 | Minnie O'Leary | 47 | Head | — | Pennsylvania |
| 8 | John O'Leary | 17 | Son | — | Pennsylvania |
| 9 | Frank Lynch THIS PERSON | 35 | Head | Machinist | Pennsylvania |
| 10 | Betty Lynch | 31 | Wife | — | Pennsylvania |
| 11 | John Lynch | 9 | Son | — | Pennsylvania |
| 12 | Dolores Lynch | 7 | Daughter | — | Pennsylvania |
| 13 | Kathleen Lynch | 1 | Daughter | — | Pennsylvania |
| 14 | Robert Henry | 56 | Head | — | Pennsylvania |
| 15 | Myrtle Henry | 24 | Daughter | Pairer | Pennsylvania |
| 16 | Herbert Henry | 54 | Son | — | Pennsylvania |
| 17 | Hugh Norris | 36 | Head | Chauffeur | Pennsylvania |
| 18 | Florence Norris | 42 | Wife | — | England |
| 19 | William Myers | 67 | Head | Beamer | England |
| 20 | Margaret Myers | 68 | Wife | — | Pennsylvania |
| 21 | Edward Glanzmann | 52 | Head | Welder | Pennsylvania |
| 22 | Hannah Glanzmann | 54 | Wife | — | Pennsylvania |
| 23 | Milton Tumbold | 57 | Nephew | Chauffeur | Pennsylvania |
| 24 | Egbert Tumbold | 27 | Nephew | Welder | Pennsylvania |
| 25 | Charles Tumbold | 25 | Nephew | Stock Clerk | Pennsylvania |
| 26 | Doris Tumbold | 27 | Niece | Welder | Pennsylvania |
| 27 | Florence Tumbold | 21 | Niece | Tape Winder | Pennsylvania |
| 28 | Hugh Jos Martin | 36 | Head | Manager | Scotland |
| 29 | Rose Martin | 37 | Wife | — | Scotland |
| 30 | John Martin | 9 | Son | — | Pennsylvania |
| 31 | Hugh Martin | 7 | Son | — | Pennsylvania |
| 32 | Charles Martin | 5 | Son | — | Pennsylvania |
| 33 | Bernard Martin | 10 | Relative | — | Pennsylvania |
| 34 | Conrad Martin | 10 | Relative | — | Pennsylvania |
| 35 | Elizabeth Boone | 49 | Head | — | Pennsylvania |
| 36 | Elizabeth Ann Boone | 28 | Daughter | School Teacher | Pennsylvania |
| 37 | Chester Boone | 26 | Son | Book Keeper | Pennsylvania |
| 38 | Emma Boone | 26 | Daughter | — | Pennsylvania |
| 39 | Jean Williamson | 12 | Niece | — | Pennsylvania |
| 40 | Peter Boyle | 62 | Head | Watchman | Scotland |
Pedigree Summary
Frank
Gen 1 · 3 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)