WA
William Armstrong — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this William Armstrong across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 6-person household.
Age 70
b. ~1870
Male
Head
Born: Australia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Armstrong |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Australia |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Naturalization Status | Am Cit |
| Additional Details | |
| Hours Worked | 7 |
| Income (1939) | 0 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birthplace (normalized) | australia |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1870 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Kathryn Armstrong | Daughter | — | 24 | ~1916 |
| Helen Taylor | Daughter | — | 32 | ~1908 |
| Caroline Armstrong | Daughter | — | 30 | ~1910 |
| William Armstrong | Head | — | 70 | ~1870 |
| Louis Taylor | Other | — | 10 | ~1930 |
| Wife Armstrong | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Salt Lake, …
Head, age 49
Salt Lake, Utah · implied b. ~1871 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Australia |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Occupation | Merchant |
| Industry | Retail Lumber |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Year of Naturalization | 1903 |
| Birthplace (normalized) | australia |
1930
Salt Lake, …
Head, age 60
Salt Lake, Utah · implied b. ~1870 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Australia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Age at First Marriage | 31 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | England |
| Occupation | Lumber |
| Industry | Lumber Co. |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Birthplace (normalized) | australia |
1940
Salt-Lake-County, Utah
Head, age 70
Salt-Lake-County, Utah · implied b. ~1870 — 6 household members
| Surname | Armstrong |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Australia |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Naturalization Status | Am Cit |
| Hours Worked | 7 |
| Income (1939) | 0 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birthplace (normalized) | australia |
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 William Armstrong across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Armstrong
Head · 1940 · age 70 · b. ~1870 · Utah
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04227-00292)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Merlin Lerrin | 25 | Lodger | Butter Cutter | Utah |
| 42 | Ruth E. Dubois | 19 | Lodger | Office Manager | Utah |
| 43 | Kenneth Dubois | 17 | Lodger | New Worker | Utah |
| 44 | D. C. Hess | 27 | Lodger | Apprentice Machinist | Utah |
| 45 | Theodore R. Homsher | 20 | Lodger | Collector | Idaho |
| 46 | Gordon Wester | 38 | Lodger | Salesman | Colorado |
| 47 | Rayden Booth | 23 | Lodger | Office Clerk | Utah |
| 48 | Chloe Bechetiad | 19 | Servant | New Worker | Wyoming |
| 49 | Lola Beal | 18 | Servant | New Worker | Utah |
| 50 | Marvin Johnson | 25 | Lodger | Lab Man | Utah |
| 51 | Gordon T. Barker | 30 | Lodger | Painter | Idaho |
| 52 | William E. Schultz | 33 | Lodger | Miner | Missouri |
| 53 | Melvin F. Thrall | 25 | Lodger | Warehouse Clerk | Michigan |
| 54 | George W. Sr. Walter | 75 | Head | — | Eng. Canada |
| 55 | Alma L. Peterson | 50 | Lodger | Salesman | Utah |
| 56 | S. L. Cloward | 21 | Lodger | Clerk | Utah |
| 57 | Clarence B. Oppenham | 52 | Head | Doctor | Utah |
| 58 | Eulalia Oppenham | 40 | Wife | — | Utah |
| 59 | Calvin R. Oppenham | 17 | Son | — | Utah |
| 60 | William Armstrong THIS PERSON | 70 | Head | — | Australia |
| 61 | Wife Armstrong | 62 | Wife | — | Utah |
| 62 | Caroline J. Armstrong | 30 | Daughter | Dressmaker | Utah |
| 63 | Kathryn Armstrong | 24 | Daughter | Upholstery | Utah |
| 64 | Helen Taylor | 32 | Daughter | Book Keeper | Utah |
| 65 | Louis R. Taylor | 10 | Grandson | — | Utah |
| 66 | Marion S. Burdett | 31 | Head | Bank Teller | Utah |
| 67 | Stella S. Burdett | 31 | Wife | — | Utah |
| 68 | Sharon Ann Burdett | 2 | Daughter | — | Utah |
| 69 | Donald B. Daley | 25 | Head | Bank Teller | Nevada |
| 70 | Geraldine Daley | 22 | Wife | Book Keeper | Utah |
| 71 | Robert M. Meyer | 37 | Head | Bank Clerk | Arkansas |
| 72 | Lucie E. Meyer | 37 | Wife | Sales Lady | Colorado |
| 73 | Marjorie R. Meyer | 12 | Daughter | — | Utah |
| 74 | Elmer Kirk | 27 | Head | Salesman | Utah |
| 75 | Alice Kirk | 25 | Wife | Book Keeper | Utah |
| 76 | Nate Rockhill | 65 | Head | Merchant | Utah |
| 77 | Lucy Rockhill | 63 | Wife | Saleslady | Utah |
| 78 | Julius B. Morley | 23 | Head | Carrier | Texas |
| 79 | Katharine Morley | 24 | Wife | — | Iowa |
| 80 | Julia Morley | 0 | Daughter | — | Texas |
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)