RL
Robert Lynch — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pima-County, Arizona
Our Model Tree links this Robert Lynch across the 1930 and 1940 US Censuses in Pima-County, Arizona (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Male
Son
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pima-County, Arizona |
| Surname | Lynch |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Tucson City |
| 1935 Residence (County) | Pima |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Township / Ward | Tucson City |
| Est. Birth Year | ~1924 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Eva Lynch | Daughter | — | 8 | ~1932 |
| Lilly Lynch | Daughter | — | 11 | ~1929 |
| Deva Lynch | Daughter | — | 8 | ~1932 |
| Juanita Lynch | Daughter | — | 12 | ~1928 |
| Francis Lynch | Daughter | — | 14 | ~1926 |
| Louis Lynch | Head | — | 44 | ~1896 |
| Robert Lynch | Son | — | 16 | ~1924 |
| Bobby Lynch | Son | — | 4 | ~1936 |
| Susie Lynch | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Pima, Arizona
Other, age 6
Pima, Arizona · implied b. ~1924 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lynch |
| Given Name | Robert W. |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Occupation | none |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Pima-County, Arizona
Son, age 16
Pima-County, Arizona · implied b. ~1924 — 9 household members
| Surname | Lynch |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Tucson City |
| 1935 Residence (County) | Pima |
| Industry | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Lynch across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Lynch
Son · 1940 · age 16 · b. ~1924 · Arizona
★ You are viewing this record
Sibling
Francis Lynch
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eva Lynch
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bobby Lynch
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lilly Lynch
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juanita Lynch
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Deva Lynch
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 — Pima-County, Arizona
Open full size
1940 US Federal Census — Pima-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00111-00428)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael Sanchez | 14 | Son | — | Arizona |
| 2 | Carlos Sanchez | 7 | Son | — | Arizona |
| 3 | Valentina Fraser | 71 | Head | — | Arizona |
| 4 | Alice Fraser | 21 | Grand daughter | — | Arizona |
| 5 | Manuel Fraser | 2 | Great grand son | — | Arizona |
| 6 | Albert O. Urmenta | 34 | Head | Barber | Mexico |
| 7 | Amanda M. Urmenta | 33 | Wife | — | Arizona |
| 8 | Mae V. Urmenta | 10 | Daughter | — | Arizona |
| 9 | Albert R. Urmenta | 8 | Son | — | Arizona |
| 10 | Forest L. Barlow | 44 | Head | Fireman | West Virginia |
| 11 | Lola Barlow | 34 | Wife | — | Utah |
| 12 | Floyd L. Barlow | 10 | Son | — | Utah |
| 13 | Bruce M. Barlow | 8 | Son | — | Utah |
| 14 | Melvin M. Copko | 25 | Head | Electrician | Arizona |
| 15 | Agnes M. Copko | 21 | Wife | — | Arkansas |
| 16 | Virginia M. Copko | 3 | Daughter | — | Arizona |
| 17 | Richard R. Copko | 2 | Son | — | Arizona |
| 18 | Robert Brown | 49 | Head | Mechanic | Missouri |
| 19 | Margaret Brown | 38 | Wife | — | Missouri |
| 20 | Fred Brown | 13 | Son | — | Missouri |
| 21 | Louis W. Lynch | 44 | Head | Equipment Man | Texas |
| 22 | Susie M. Lynch | 43 | Wife | — | Texas |
| 23 | Robert W. Lynch THIS PERSON | 16 | Son | — | Texas |
| 24 | Francis C. Lynch | 14 | Daughter | — | Texas |
| 25 | Juanita J. Lynch | 12 | Daughter | — | Texas |
| 26 | Lilly M. Lynch | 11 | Daughter | — | Texas |
| 27 | Eva F. Lynch | 8 | Daughter | — | Arizona |
| 28 | Deva M. Lynch | 8 | Daughter | — | Arizona |
| 29 | Bobby C. Lynch | 4 | Son | — | Arizona |
| 30 | Gee Hing | 35 | Head | Grocery Man | China |
| 31 | Tom Shee Hing | 30 | Wife | — | China |
| 32 | Helen Hing | 4 | Daughter | — | Arizona |
| 33 | Ruth Hing | 3 | Daughter | — | Arizona |
| 34 | Jean Hing | 2 | Daughter | — | Arizona |
| 35 | Emma Hing | 1 | Daughter | — | Arizona |
| 36 | Richard P. Jr. Mesa | 25 | Head | Blacksmith | Arizona |
| 37 | Alicia Mesa | 24 | Wife | — | Arizona |
| 38 | John L. Contreras | 26 | Head | Laborer | Arizona |
| 39 | Carmen Contreras | 26 | Wife | — | Arizona |
| 40 | Alicia Contreras | 2 | Daughter | — | Arizona |
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)