RL
Robert Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Montgomery-County, Pennsylvania
Our Model Tree links this Robert Long across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Pennsylvania |
| Surname | Long |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Conshohocken |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Welder apprentice |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 412 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Welder Apprentice |
| Township / Ward | Conshohocken |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Long | Head | — | 42 | ~1898 |
| Monroe Long | Son | — | 19 | ~1921 |
| Robert Long | Son | — | 21 | ~1919 |
| Bertha Long | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Montgomery, Pennsylvania
Son, age 1
Montgomery, Pennsylvania · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Montgomery, Pennsylvania
Son, age 11
Montgomery, Pennsylvania · implied b. ~1919 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Montgomery-County, Pennsylvania
Son, age 21
Montgomery-County, Pennsylvania · implied b. ~1919 — 4 household members
| Surname | Long |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Conshohocken |
| 1935 Residence (County) | Montgomery |
| Occupation | Welder apprentice |
| Industry | Garage |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 412 |
| Highest Grade | Hs 4 |
| 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 Robert Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Long (~0.92 confidence) and father Robert Long (~0.92 confidence) and mother Bertha Long (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Long
b. ~1897
Source father
● Household
· direct · ~0.92
Father
Robert Long
b. ~1898
Source father
● Household
· direct · ~0.92
Mother
Bertha Long
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Long
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Monroe Long
Sibling · 1940 · age 19
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 — Montgomery-County, Pennsylvania
Open full size
1940 US Federal Census — Montgomery-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03578-00211)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Vincenzo Compi | 54 | Head | Laborer | Italy |
| 42 | Theresa Compi | 51 | Wife | — | Pennsylvania |
| 43 | Frank Compi | 21 | Son | — | Pennsylvania |
| 44 | Hilda Compi | 12 | Daughter | — | Pennsylvania |
| 45 | Vincent Giandonato | 55 | Brother-in-law | — | Italy |
| 46 | Anthony Giandonato | 17 | Cousin | — | Pennsylvania |
| 47 | John Giandonato | 15 | Cousin | — | Pennsylvania |
| 48 | Annunzio Giandonato | 14 | Cousin | — | Pennsylvania |
| 49 | Francis Kasopski | 35 | Head | Spinner | Pennsylvania |
| 50 | Mytha Koniewicz | 31 | Lodger | Spinner | Pennsylvania |
| 51 | William Courter | 56 | Head | Watchman | Pennsylvania |
| 52 | Mary Courter | 55 | Wife | — | Pennsylvania |
| 53 | Emery C. Harris | 38 | Head | Paper-Cutter | Pennsylvania |
| 54 | Anna Harris | 36 | Wife | — | Ohio |
| 55 | Paul Harris | 16 | Son | — | Pennsylvania |
| 56 | Grosville Jefferies | 46 | Head | Weaver | Pennsylvania |
| 57 | Anna Jefferies | 43 | Wife | — | Pennsylvania |
| 58 | Grosville Jefferies | 19 | Son | — | Pennsylvania |
| 59 | Charles Jefferies | 16 | Son | — | Pennsylvania |
| 60 | Robert C. Long | 42 | Head | Clerk | Pennsylvania |
| 61 | Bertha Long | 42 | Wife | — | Maryland |
| 62 | Robert L. Long THIS PERSON | 21 | Son | Welder Apprentice | Pennsylvania |
| 63 | Monroe Long | 19 | Son | Clerk | Pennsylvania |
| 64 | Leonard Robinson | 41 | Head | Layer-Out | England |
| 65 | Jane C. Robinson | 56 | Wife | — | England |
| 66 | Joseph Nugent | 53 | Head | Laborer | England |
| 67 | Mary Nugent | 47 | Wife | — | England |
| 68 | Joseph Nugent | 5 | Son | — | Pennsylvania |
| 69 | Marie O. Nugent | 4 | Daughter | — | Pennsylvania |
| 70 | George Freelond | 40 | Head | He-Helper | Scotland |
| 71 | Jessie Freelond | 41 | Wife | — | England |
| 72 | William Freelond | 12 | Son | — | Pennsylvania |
| 73 | Robert Freelond | 9 | Son | — | Pennsylvania |
| 74 | John Freelond | 5 | Son | — | Pennsylvania |
| 75 | H. Francis Freese | 33 | Head | Chemist | Massachusetts |
| 76 | Helen Freese | 33 | Wife | — | Pennsylvania |
| 77 | Norma M. Freese | 6 | Daughter | — | Pennsylvania |
| 78 | John F. Freese | 2 | Son | — | Pennsylvania |
| 79 | William Longcore | 50 | Head | Surgical Tools | Pennsylvania |
| 80 | Fannie Longcore | 48 | Wife | — | Pennsylvania |
Pedigree Summary
Robert + 1 sibling
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)