RC
Richard Collins — 1920 US Census Record
Model Tree available1920 United States Federal Census · San Francisco, California
Our Model Tree links this Richard Collins across the 1900, 1910 and 1920 US Censuses in San Francisco, California (XGBoost, ~Confirmed), with identified parents Richard & Richard — first a son (b.~1893), then head of a 4-person household.
Age 27
b. ~1893
Male
Son
Born: California
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | San Francisco, California |
| Surname | Collins |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Railway Mail Clerk |
| Industry | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Railway Mail Clerk |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1893 |
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 1920 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Myra Collins | Daughter | — | 15 | ~1905 |
| Mary Collins | Head | — | 48 | ~1872 |
| Edward Collins | Son | — | 21 | ~1899 |
| Richard Collins | Son | — | 27 | ~1893 |
Census Appearances
1900
San Francisco, …
Son, age 8
San Francisco, California · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | California |
| Birth Month | Aug |
| Birth Year | 1892 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | At school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1910
San Francisco, …
Son, age 17
San Francisco, California · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | Richard J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Office Boy |
| Industry | Insurance Office |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
San Francisco, …
Son, age 27
San Francisco, California · implied b. ~1893 — 4 household members
| Surname | Collins |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Railway Mail Clerk |
| Industry | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Richard Collins across 3 US Census years (1900, 1910 and 1920) in San Francisco, California, using XGBoost record linkage. Identified parents: father Richard Collins (~0.92 confidence) and father Richard Collins (~0.92 confidence) and mother Mary Collins (~0.92 confidence) and mother Mary Collins (~0.92 confidence) and mother Mary Collins (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Richard Collins
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Richard Collins
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Mary Collins
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Mary Collins
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Mary Collins
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Collins
Son · 1920 · age 27 · b. ~1893 · California
★ You are viewing this record
Sibling
Myra Collins
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Collins
Sibling · 1920 · age 21
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
1920 US Federal Census — San Francisco, California
Open full size
1920 US Federal Census — San Francisco, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu134unit:0719)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Dreves | 52 | Head | — | Holstein |
| 2 | Claus Dreves | 40 | Nephew | Bartender | Hanover |
| 3 | Charles Summers | 31 | Nephew | Butcher | Holstein |
| 4 | Fred Myer | 30 | Lodger | Teamster | Hanover |
| 5 | Gus Heinder | 36 | Lodger | Teamster | Hanover |
| 6 | Mary Ryan | 51 | Head | — | Ireland |
| 7 | Mary A Ryan | 26 | Daughter | Saleslady | California |
| 8 | John Ryan | 24 | Son | File Clerk | California |
| 9 | Julia Ryan | 22 | Daughter | Saleswoman | California |
| 10 | Joseph Gavan | 48 | Brother | Cabinet Maker | Ireland |
| 11 | Emily Dunn | 19 | Niece | Candy Maker | California |
| 12 | Margaret Dunn | 18 | Niece | File Clerk | California |
| 13 | Catherine Dunn | 17 | Niece | — | California |
| 14 | William Freeman | 63 | Head | Hammer Man | Ireland |
| 15 | Ellen Freeman | 52 | Wife | — | California |
| 16 | Erma Freeman | 17 | Daughter | — | California |
| 17 | Michael Hanlon | 61 | Head | Laborer | New York |
| 18 | Catherine Hanlon | 49 | Wife | — | New York |
| 19 | Mervin Hanlon | 23 | Son | Machinist | California |
| 20 | Veronica Hanlon | 21 | Daughter | Stenographer | California |
| 21 | Regina Hanlon | 17 | Daughter | Machine Operator | California |
| 22 | Grace Hanlon | 15 | Daughter | — | California |
| 23 | Frank Cronnin | 46 | Head | Warehouseman | New Hampshire |
| 24 | Josephine Cronnin | 38 | Wife | — | California |
| 25 | Joseph Cronnin | 4 | Son | — | California |
| 26 | William De Leonor | 38 | Head | Clerk | California |
| 27 | Maud De Leonor | 37 | Wife | — | California |
| 28 | Frank Sullivan | 17 | Step Son | File Clerk | California |
| 29 | Frank Cooney | 22 | Son in law | Truck Driver | California |
| 30 | Lilly Cooney | 19 | Daughter | — | California |
| 31 | William Troy | 24 | Step Son | — | California |
| 32 | Herman Jamerson | 40 | Head | Furniture Mover | Iowa |
| 33 | Amanda Jamerson | 40 | Wife | — | Sweden |
| 34 | Ben Doddy | 30 | Lodger | Teamster | Michigan |
| 35 | Mary Collins | 48 | Head | — | California |
| 36 | Richard Collins THIS PERSON | 27 | Son | Railway Mail Clerk | California |
| 37 | Edward Collins | 21 | Son | Stenographer | California |
| 38 | Myra Collins | 15 | Daughter | — | California |
| 39 | Thomas Spear | 62 | Head | Retail Merchant | Ireland |
| 40 | Lenora Spear | 56 | Wife | — | Ireland |
| 41 | Lenora Spear | 24 | Daughter | Nurse | California |
| 42 | Beryl Spear | 17 | Daughter | — | California |
| 43 | Mary Green | 63 | Housekeeper | Housekeeper | Ireland |
| 44 | John Manion | 45 | Head | Detective Sergeant | California |
| 45 | Mary Manion | 38 | Wife | — | California |
| 46 | John L Manion | 10 | Son | — | California |
| 47 | Daniel Manion | 8 | Son | — | California |
| 48 | Helena Manion | 3 | Daughter | — | California |
| 49 | Ellian Manion | 1 | Daughter | — | California |
| 50 | Fred C O'Neil | 21 | Head | — | California |
Related Census Records
Pedigree Summary
Richard + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)