MJ
Mary Johnston — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Los Angeles, California
Our Model Tree links this Mary Johnston across the 1920, 1930 and 1940 US Censuses in Los Angeles, California (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 2-person household.
Age 57
b. ~1863
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Los Angeles, California |
| Surname | Johnston |
| Given Name | Mary E |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1888 |
| Birthplace (normalized) | ireland |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1863 |
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.
2 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Kathleen Johnston | Daughter | — | 31 | ~1889 |
| Mary Johnston | Head | — | 57 | ~1863 |
Census Appearances
1920
Los Angeles, …
Head, age 57
Los Angeles, California · implied b. ~1863 — 2 household members
| Surname | Johnston |
| Given Name | Mary E |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1888 |
| Birthplace (normalized) | ireland |
1930
Los Angeles, …
Other, age 67
Los Angeles, California · implied b. ~1863 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnstone |
| Given Name | Mary S |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Los-Angeles-County, California
Spouse, age 77
Los-Angeles-County, California · implied b. ~1863 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Los Angeles |
| 1935 Residence (County) | Los Angeles |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Johnston across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Johnston
Head · 1920 · age 57 · b. ~1863 · California
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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 — Los Angeles, California
Open full size
1920 US Federal Census — Los Angeles, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu107unit:0562)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earnest Watson | 30 | — | Teacher | California |
| 2 | Charles Leahy | 26 | — | Teacher | California |
| 3 | Joseph Donahue | 28 | — | Teacher | California |
| 4 | Timothy Lynch | 75 | — | Gardner | Ireland |
| 5 | James Meehan | 33 | — | Gardner | Missouri |
| 6 | John Guerra | 27 | — | Carpenter | Cape Verde Islands |
| 7 | Nicholas Innfield | 49 | — | Laborer | Switzerland |
| 8 | Hugh S Campbell | 43 | Head | Watchman | Texas |
| 9 | Julith Campbell | 33 | Wife | — | Texas |
| 10 | Donald Campbell | 1 | Son | — | California |
| 11 | G Benjamin Stearns | 34 | Head | — | Texas |
| 12 | Mildred Stearns | 30 | Wife | — | California |
| 13 | Jack Stearns | 5 | Son | — | Illinois |
| 14 | Wm F Felaing | 40 | Head | Conductor | Pennsylvania |
| 15 | Margaret Felaing | 42 | Wife | — | Pennsylvania |
| 16 | Vera C Felaing | 11 | Daughter | — | California |
| 17 | Everett M Felaing | 4 | Son | — | California |
| 18 | Paula Felaing | 2 | Daughter | — | California |
| 19 | Mary E Johnston THIS PERSON | 57 | Head | — | Ireland |
| 20 | Kathleen T Johnston | 31 | Daughter | — | California |
| 21 | Ellie Klein | 45 | Head | Teacher | Austria |
| 22 | Frieda Klein | 20 | Daughter | Merchant | Missouri |
| 23 | Ida Klein | 19 | Daughter | Merchant | Missouri |
| 24 | Esther Klein | 18 | Daughter | Saleslady | Missouri |
| 25 | Sam Klein | 16 | Son | Merchant | Missouri |
| 26 | David Klein | 17 | Son | — | California |
| 27 | Marjory Klein | 11 | Daughter | — | California |
| 28 | Myra Klein | 13 | Daughter | — | California |
| 29 | Leona Klein | 7 | Daughter | — | California |
| 30 | Robert Klein | 4 | Son | — | California |
| 31 | Harry Kaplan | 46 | Head | Merchant | Russia |
| 32 | Mildred Kaplan | 45 | Wife | — | New York |
| 33 | Max Kaplan | 23 | Son | Doctor | Missouri |
| 34 | Sarah Kaplan | 21 | Daughter | — | California |
| 35 | Leah Kaplan | 20 | Daughter | — | Missouri |
| 36 | Elizabeth Rifenberick | 40 | Head | — | Illinois |
| 37 | Charles H Brooks | 68 | Head | — | Pennsylvania |
| 38 | Ida L Brooks | 65 | Wife | — | New York |
| 39 | Dorothy B Brooks | 27 | Daughter | — | Pennsylvania |
| 40 | Charles H Cross | 65 | Head | — | Ohio |
| 41 | Rebecca Cross | 60 | Wife | — | Ohio |
| 42 | Samuel Karnes | 46 | Head | Merchant | Kentucky |
| 43 | Laura Karnes | 30 | Wife | — | Colorado |
| 44 | Warren Karnes | 8 | Son | — | Kentucky |
| 45 | Wilbur Karnes | 6 | Son | — | Kentucky |
| 46 | Albert H Perry | 53 | Boarder | — | England |
| 47 | Wm Filgate | 51 | Head | — | Ohio |
| 48 | Mary E Filgate | 49 | Wife | — | Ohio |
| 49 | Herbert P Filgate | 25 | Son | — | Ohio |
| 50 | Woodrow Filgate | 23 | Son | — | Ohio |
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)