WJ
William Johnston — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cascade, Montana
Our Model Tree links this William Johnston across the 1920, 1930 and 1940 US Censuses in Cascade, Montana (XGBoost, ~Confirmed), with identified parents Mary & Mary — first a son (b.~1916), then head of a 11-person household.
Age 14
b. ~1916
Male
Son
Born: Canada
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cascade, Montana |
| Surname | Johnston |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Canada |
| Naturalization Status | Alien |
| Year of Immigration | 1916 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
| Township / Ward | That Part Of School District 1 Great Falls Outside Great Falls City |
| Est. Birth Year | ~1916 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Johnston | Daughter | — | 19 | ~1911 |
| Kathleen Johnston | Daughter | — | 13 | ~1917 |
| Gertrude Johnston | Daughter | — | 11 | ~1919 |
| William Johnston | Head | — | 45 | ~1885 |
| Mary Coleman | Other | — | 75 | ~1855 |
| Mary Johnston | Other | — | 46 | ~1884 |
| David Johnston | Son | — | 15 | ~1915 |
| Stephen Johnston | Son | — | 20 | ~1910 |
| John Johnston | Son | — | 6 | ~1924 |
| William Johnston | Son | — | 14 | ~1916 |
| James Johnston | Son | — | 10 | ~1920 |
Census Appearances
1920
Cascade, Montana
Son, age 3
Cascade, Montana · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnstone |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Canada |
| Year of Immigration | 1914 |
| Naturalization Status | Alien |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
1930
Cascade, Montana
Son, age 14
Cascade, Montana · implied b. ~1916 — 11 household members
| Surname | Johnston |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Canada |
| Naturalization Status | Alien |
| Year of Immigration | 1916 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
1940
Cascade-County, Montana
Son, age 24
Cascade-County, Montana · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnstone |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Canada |
| 1935 Residence (City) | GREAT FALLS |
| 1935 Residence (County) | CASCADE |
| Naturalization Status | Naturalized |
| Occupation | Laborer |
| Industry | Smelter |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
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 Johnston across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Johnstone (~0.92 confidence) and mother Mary Johnstone (~0.92 confidence) and father William Johnston (~0.92 confidence) and father William Johnstone (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Johnstone
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Mary Johnstone
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
William Johnston
b. ~1885
Source father
● Household
· direct · ~0.92
Father
William Johnstone
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Johnston
Son · 1930 · age 14 · b. ~1916 · Montana
★ You are viewing this record
Sibling
Gertrude Johnston
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Johnston
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stephen Johnston
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Johnston
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Johnston
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
David Johnston
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Johnston
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cascade, Montana
Open full size
1930 US Federal Census — Cascade, Montana
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1253unit:0917)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Delia Bryant | 52 | Head | — | North Dakota |
| 2 | Gladys R Bryant | 22 | Niece | Clerk | North Dakota |
| 3 | Georgia C Bryant | 19 | Niece | Elevator Girl | North Dakota |
| 4 | Gayhart Erickson | 47 | Head | Painter | Minnesota |
| 5 | Ella R Erickson | 48 | Wife-H | — | Maine |
| 6 | Marjorie E Erickson | 13 | Daughter | — | Minnesota |
| 7 | Henry Buggs | 29 | Head | Laborer | England |
| 8 | Ruth E Buggs | 22 | Wife-H | — | North Dakota |
| 9 | Henry Buggs | 2 | Son | — | Montana |
| 10 | William H Johnston | 45 | Head | Butcher | England |
| 11 | Mary A Johnston | 46 | Wife-H | — | England |
| 12 | Mary Johnston | 19 | Daughter | — | England |
| 13 | Stephen Johnston | 20 | Son | Laborer | England |
| 14 | David Johnston | 15 | Son | — | England |
| 15 | William Johnston THIS PERSON | 14 | Son | — | Canada |
| 16 | Kathleen Johnston | 13 | Daughter | — | Montana |
| 17 | Gertrude Johnston | 11 | Daughter | — | Montana |
| 18 | James Johnston | 10 | Son | — | Montana |
| 19 | John Johnston | 6 | Son | — | Montana |
| 20 | Mary Coleman | 75 | Mother-in-law | — | Irish Free State |
| 21 | James H Blossom | 50 | Head | Oiler | United States |
| 22 | Minnie Blossom | 47 | Wife-H | — | Montana |
| 23 | James A Blossom | 21 | Son | Laborer | Montana |
| 24 | Mina C Blossom | 16 | Daughter | — | Montana |
| 25 | Emma F Blossom | 14 | Daughter | — | Montana |
| 26 | Adolf Mehlhoff | 47 | Head | Laborer | Russia |
| 27 | Christina Mehlhoff | 46 | Wife-H | — | Russia |
| 28 | Reinhold E Mehlhoff | 21 | Son | Truck Driver | South Dakota |
| 29 | Ruben C Mehlhoff | 18 | Son | Laborer | South Dakota |
| 30 | Walter F Mehlhoff | 17 | Son | — | Montana |
| 31 | Elnora Mehlhoff | 14 | Daughter | — | Montana |
| 32 | Herbert S Mehlhoff | 10 | Son | — | Montana |
| 33 | Arthur Mehlhoff | 7 | Son | — | Montana |
| 34 | Irene Mehlhoff | 3 | Daughter | — | Montana |
| 35 | John H Preston | 33 | Head | Farmer | Iowa |
| 36 | Nellie M Preston | 27 | Wife-H | — | Illinois |
| 37 | Henry L Preston | 69 | Father-in-law | Farmer | Iowa |
| 38 | Harry M Preston | 8 | Son | — | Montana |
| 39 | John C Preston | 6 | Son | — | Montana |
| 40 | James R Preston | 2 | Son | — | Montana |
| 41 | Nelson B Atchison | 38 | Head | Truck Driver | Canada |
| 42 | Marion B Atchison | 34 | Wife-H | — | Wisconsin |
| 43 | Frank B Atchison | 15 | Son | — | Montana |
| 44 | Wesley R Atchison | 10 | Son | — | Montana |
| 45 | Walter J Atchison | 6 | Son | — | Montana |
| 46 | Thomas Holman | 33 | Head | Salesman | Montana |
| 47 | Helen M Holman | 24 | Wife-H | — | Montana |
| 48 | Bernice A Holman | 6 | Daughter | — | Montana |
| 49 | Blanche B Holman | 5 | Daughter | — | Montana |
| 50 | Beatrice E Holman | 4 | Daughter | — | Montana |
Pedigree Summary
William + 7 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)