AC
Ada Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this Ada Clark across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 4-person household.
Age 62
b. ~1878
Female
Spouse
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Clark |
| Given Name | Ada S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Utah |
| Birth Country | England |
| Birthplace (normalized) | england |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1878 |
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 Ada | Age | Birth yr |
|---|---|---|---|---|
| George Clark | Son | — | 41 | ~1899 |
| Lorenzo Clark | Head | — | 64 | ~1876 |
| Ada Clark | Spouse | — | 62 | ~1878 |
| Arthur Clark | Son | — | 20 | ~1920 |
Census Appearances
1920
Salt Lake, …
Spouse, age 46
Salt Lake, Utah · implied b. ~1874 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ada Lee |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1894 |
| Naturalization Status | Alien |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Salt Lake, …
Spouse, age 53
Salt Lake, Utah · implied b. ~1877 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ada S |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1895 |
| Age at First Marriage | 21 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Salt-Lake-County, Utah
Spouse, age 62
Salt-Lake-County, Utah · implied b. ~1878 — 4 household members
| Surname | Clark |
| Given Name | Ada S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Utah |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Ada Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Ada Clark
Spouse · 1940 · age 62 · b. ~1878 · Utah
★ 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 — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-04223-00662)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Milton Wrimary | 30 | Brother | Press Operator | Utah |
| 2 | Lorenzo Clark | 64 | Head | Furniture | Utah |
| 3 | Ada S. Clark THIS PERSON | 62 | Wife | — | England |
| 4 | George L. Clark | 41 | Son | — | Utah |
| 5 | Arthur Clark | 20 | Son | Office Work | Utah |
| 6 | Alma G. Milner | 46 | Head | Contract Trucker | Utah |
| 7 | Mary E. Milner | 60 | Wife | — | Utah |
| 8 | Alura Milner | 18 | Daughter | — | Utah |
| 9 | Francis J. Milner | 16 | Daughter | — | Utah |
| 10 | Elenor Milner | 14 | Daughter | Stenographer | Utah |
| 13 | Albert G. Holt | 67 | Head | Farmer | Utah |
| 14 | Flora W. Holt | 52 | Wife | — | Utah |
| 15 | Mary M. Holt | 36 | Daughter | Teacher | Utah |
| 16 | Charles Holt | 34 | Son | Runner | Utah |
| 17 | Margaret S. Evans | 36 | Head | Stenographer | Utah |
| 18 | Patricia E. Evans | 5 | Daughter | — | Utah |
| 19 | Lida J. Curry | 79 | Lodger | — | Missouri |
| 20 | Clinton E. Strong | 39 | Head | Secretary | Utah |
| 21 | Afton D. Strong | 35 | Wife | — | Utah |
| 22 | Sharon Strong | 7 | Daughter | — | Utah |
| 23 | Suzanne Strong | 0 | Daughter | — | Utah |
| 24 | James E. Littlefield | 37 | Head | Salesman | Utah |
| 25 | Norma D. Littlefield | 36 | Wife | — | Utah |
| 26 | James E. Jr. Littlefield | 11 | Son | — | Utah |
| 27 | Wm G. Orchard | 43 | Head | Steam Fitter | Utah |
| 28 | Lola Ann Orchard | 42 | Wife | Nurse | Utah |
| 29 | Lois Beth Orchard | 16 | Daughter | — | Utah |
| 30 | Harry Orchard | 10 | Son | — | Utah |
| 31 | Pola Ann Poketelia | 70 | Aunt | — | Utah |
| 32 | George W. Merritt | 48 | Head | Switchman | Arizona |
| 33 | Lucelle Merritt | 47 | Wife | — | Illinois |
| 34 | Deone Merritt | 9 | Daughter | — | Utah |
| 35 | Paul Luebeck | 28 | Head | Clerk | Utah |
| 36 | Helen Luebeck | 27 | Wife | Stenographer | Utah |
| 37 | Tony Bond | 38 | Head | Bar Tender | Italy |
| 38 | Alice Bond | 32 | Wife | Seamstress | Utah |
| 39 | Jean Bond | 15 | Daughter | — | Utah |
| 40 | Jay Bond | 12 | Son | — | Utah |
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)