MJ
Mary Jennings — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Salt Lake, Utah
Our Model Tree links this Mary Jennings across the 1920, 1930 and 1940 US Censuses in Salt Lake, Utah (XGBoost, ~Confirmed) — first a spouse (b.~1871), then head of a 5-person household.
Age 49
b. ~1871
Female
Spouse
Born: Utah
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Salt Lake, Utah |
| Surname | Jennings |
| Given Name | Mary R |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Utah |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1871 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Jennings | Head | — | 50 | ~1870 |
| Robert Jennings | Son | — | 19 | ~1901 |
| Elwood Jennings | Son | — | 15 | ~1905 |
| Robert Jennings | Son | — | 22 | ~1898 |
| Mary Jennings | Spouse | — | 49 | ~1871 |
Census Appearances
1920
Salt Lake, …
Spouse, age 49
Salt Lake, Utah · implied b. ~1871 — 5 household members
| Surname | Jennings |
| Given Name | Mary R |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Utah |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Salt Lake, …
Spouse, age 62
Salt Lake, Utah · implied b. ~1868 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jennings |
| Given Name | Margie W |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | United States |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Head, age 69
Salt-Lake-County, Utah · implied b. ~1871
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Jennings |
| Given Name | Marjorie S. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Occupation | Book Shop |
| Industry | Private |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 156 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Mary Jennings across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Jennings
Spouse · 1920 · age 49 · b. ~1871 · Utah
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Salt Lake, Utah
Open full size
1920 US Federal Census — Salt Lake, Utah
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1866unit:0865)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anthony Edna E Anthony | 8 | daughter | None | Utah |
| 2 | Broom H Parker | 74 | Head | None | Illinois |
| 3 | Effie F Parker | 65 | wife | None | Michigan |
| 4 | Rayburn C Parker | 32 | son-in-law | Mail-Carrier | Utah |
| 5 | Ada E Parker | 29 | daughter | None | Utah |
| 6 | Emma Andrews | 54 | Head | None | Utah |
| 7 | James G Andrews | 30 | son | None | Utah |
| 8 | Louis E Wright | 26 | son-in-law | Truck Driver | Utah |
| 9 | Maude E Wright | 23 | daughter | Sheepherder | Nevada |
| 10 | Louis E Jr Wright | 4 | grandson | None | Utah |
| 11 | Emma J Wright | 3 | granddaughter | None | Utah |
| 12 | Earl R Wright | 2 | grandson | None | Utah |
| 13 | Peter Nelson | 45 | Head | Storekeeper | Denmark |
| 14 | Ada L Nelson | 43 | wife | None | Ohio |
| 15 | Robert Nelson | 16 | son | Laborer | Colorado |
| 16 | Eugene Nelson | 8 | son | None | Utah |
| 17 | Henry Nelson | 3 | son | None | Utah |
| 18 | Lila Warren | 32 | Head | Saleslady | England |
| 19 | Alfred V Knott | 30 | Head | Fireman | England |
| 20 | Clara J Knott | 31 | wife | None | England |
| 21 | Mary J Knott | 3 | daughter | None | Utah |
| 22 | Don J Knott | 1 | son | None | Utah |
| 23 | John R Faulkner | 51 | Head | Laborer | Nebraska |
| 24 | Nellie Faulkner | 42 | wife | None | England |
| 25 | Roy Faulkner | 20 | son | None | Oregon |
| 26 | Kenneth Faulkner | 14 | son | Truck Driver | Washington |
| 27 | Violet Faulkner | 9 | daughter | None | Utah |
| 28 | Melvin C Faulkner | 8 | son | None | Utah |
| 29 | Pearl Faulkner | 6 | daughter | None | Utah |
| 30 | Cleo Faulkner | 2 | daughter | None | Utah |
| 31 | Benjamin R Warren | 41 | Head | Laborer | England |
| 32 | Lizzie Warren | 38 | wife | None | England |
| 33 | Beatrice J Warren | 13 | daughter | None | England |
| 34 | Sarah A Warren | 10 | daughter | None | England |
| 35 | Mildred M Warren | 2 | daughter | None | Utah |
| 36 | Frank Gough | 33 | Head | Miner | Utah |
| 37 | Veneta Gough | 23 | wife | None | Utah |
| 38 | Steward Gough | 3 | son | None | Utah |
| 39 | Joseph L Royals | 32 | Head | Contractor | North Carolina |
| 40 | Hazel L Royals | 31 | wife | None | Utah |
| 41 | Alvin J Royals | 9 | son | None | Utah |
| 42 | Alvia V Royals | 6 | daughter | None | Utah |
| 43 | Joseph D Royals | 4 | son | None | Utah |
| 44 | Paul F Royals | 1 | son | None | Utah |
| 45 | Jessie Rowe | 57 | mother-in-law | Floor-Lady | England |
| 46 | Robert H Jennings | 50 | Head | Barman | Utah |
| 47 | Mary R Jennings THIS PERSON | 49 | wife | None | Utah |
| 48 | Robert N Jennings | 22 | son | Night Relay | Utah |
| 49 | Robert M Jennings | 19 | son | Mechanic | Utah |
| 50 | Elwood Jennings | 15 | son | None | Utah |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)