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John Mclaughlin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ouray-County, Colorado
Our Model Tree links this John Mclaughlin across the 1920, 1930 and 1940 US Censuses in Ouray-County, Colorado (XGBoost, ~Confirmed), with identified parents Mary — first a head (b.~1892), then head of a 5-person household.
Age 48
b. ~1892
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ouray-County, Colorado |
| Surname | McLaughlin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Colona |
| 1935 Residence (County) | Ouray |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 66 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Farmer |
| Township / Ward | Colona |
| Est. Birth Year | ~1892 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Mclaughlin | Head | — | 48 | ~1892 |
| Bernard Mclaughlin | Son | — | 16 | ~1924 |
| William Mclaughlin | Son | — | 14 | ~1926 |
| Robert Mclaughlin | Son | — | 15 | ~1925 |
| Nellie Mclaughlin | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Ouray, Colorado
Son, age 27
Ouray, Colorado · implied b. ~1893 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLaughlan |
| Given Name | John G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Scotland |
| Occupation | Farm laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Ouray, Colorado
Head, age 38
Ouray, Colorado · implied b. ~1892 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McLaughlin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 29 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Scotland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Ouray-County, Colorado
Head, age 48
Ouray-County, Colorado · implied b. ~1892 — 5 household members
| Surname | McLaughlin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Colona |
| 1935 Residence (County) | Ouray |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 66 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Mclaughlin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Mclaughlan (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Mclaughlan
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mclaughlin
Head · 1940 · age 48 · b. ~1892 · Colorado
★ 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 — Ouray-County, Colorado
Open full size
1940 US Federal Census — Ouray-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00473-00813)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William E Moon | 16 | Hired Man | Farm Laborer | Texas |
| 2 | Harry A Arnold | 58 | Head | Farmer | Missouri |
| 3 | Bertha J Arnold | 55 | Wife | — | Illinois |
| 4 | Patric H Doherty | 67 | Head | Farmer | North Ireland |
| 5 | Keith Andress | 23 | Hired Man | Camp Mover | Colorado |
| 6 | Ray C Humphrey | 51 | Head | Farmer | Colorado |
| 7 | Gladys Humphrey | 48 | Wife | — | Colorado |
| 8 | William C Humphrey | 11 | Son | — | Colorado |
| 9 | John Mclaughlin THIS PERSON | 48 | Head | Farmer | Colorado |
| 10 | Nellie M Mclaughlin | 46 | Wife | — | Colorado |
| 11 | Bernard Mclaughlin | 16 | Son | — | Colorado |
| 12 | Robert Mclaughlin | 15 | Son | — | Colorado |
| 13 | William Mclaughlin | 14 | Son | — | Colorado |
| 14 | Gilbert B Thayer | 23 | Head | Farmer | New York |
| 15 | Sadie E Thayer | 40 | Wife | — | Michigan |
| 16 | James Kelly | 28 | Head | Farmer | Colorado |
| 17 | Lucille M Kelly | 24 | Wife | — | Missouri |
| 18 | Glendora Kelly | 5 | Daughter | — | Colorado |
| 19 | James R Kelly | 3 | Son | — | Colorado |
| 20 | John G Yanner | 72 | Head | Farmer | Indiana |
| 21 | Marion Linscott | 29 | Head | Farmer | Iowa |
| 22 | Joe Head | 59 | Head | Farmer | Colorado |
| 23 | John M Mangan | 44 | Lodger | Contractor Miner | Colorado |
| 24 | Tom Middleton | 70 | Head | Farmer | Scotland |
| 25 | Alice A Middleton | 66 | Wife | — | Colorado |
| 26 | James D Middleton | 35 | Head | Farmer | Colorado |
| 27 | Ruby J Middleton | 34 | Wife | — | Colorado |
| 28 | Robert J Middleton | 12 | Son | — | Colorado |
| 29 | Thomas D Middleton | 9 | Son | — | Colorado |
| 30 | Hanna K Smith | 85 | Head | — | England |
| 31 | Minnie M Smith | 63 | Daughter | Farmer | Colorado |
| 32 | Harry D Smith | 45 | Son | Farmer | Colorado |
| 33 | James F Miller | 21 | Tenant | Farmer | Colorado |
| 34 | John T Collin | 37 | Head | Farmer | Colorado |
| 35 | Ardath E Collin | 30 | Wife | — | Iowa |
| 36 | Richard Collin | 5 | Son | — | Colorado |
| 37 | Theodore G Collin | 2 | Son | — | Colorado |
| 38 | Raymond Miller | 20 | Hired Man | Farm Laborer | Colorado |
| 39 | James Miller | 66 | Head | Farmer | Pennsylvania |
| 40 | Agnes E Miller | 44 | Wife | — | Colorado |
Pedigree Summary
John
Gen 1 · 1 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)