RC
Robert Chapman — 1920 US Census Record
Model Tree available1920 United States Federal Census · Barnstable, Massachusetts
Our Model Tree links this Robert Chapman across the 1900, 1910 and 1920 US Censuses in Barnstable, Massachusetts (XGBoost, ~Confirmed), with identified parents Fred & Annie — first a son (b.~1897), then head of a 5-person household.
Age 23
b. ~1897
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Barnstable, Massachusetts |
| Surname | Chapman |
| Given Name | Robert S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Merchant |
| Industry | Retail Hardware |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Merchant |
| Township / Ward | Dennis Town |
| Est. Birth Year | ~1897 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Ralph Bowman | Other | — | 3 | ~1917 |
| Bertha Bowman | Daughter | — | 27 | ~1893 |
| Robert Chapman | Son | — | 23 | ~1897 |
| Margaret Chapman | Spouse | — | 59 | ~1861 |
| Frederick Chapman | Head | — | 51 | ~1869 |
Census Appearances
1900
Barnstable, Massachusetts
Son, age 4
Barnstable, Massachusetts · implied b. ~1896 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Robert F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Birth Month | June |
| Birth Year | 1896 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1910
Barnstable, Massachusetts
Son, age 13
Barnstable, Massachusetts · implied b. ~1897 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Robert F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Barnstable, Massachusetts
Son, age 23
Barnstable, Massachusetts · implied b. ~1897 — 5 household members
| Surname | Chapman |
| Given Name | Robert S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Merchant |
| Industry | Retail Hardware |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Robert Chapman across 3 US Census years (1900, 1910 and 1920) in Barnstable, Massachusetts, using XGBoost record linkage. Identified parents: father Fred Chapman (~0.92 confidence) and mother Annie Chapman (~0.92 confidence) and mother Lana Chapman (~0.92 confidence) and mother Margaret Chapman (~0.92 confidence) and father Frederick Chapman (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Chapman
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Annie Chapman
b. ~1860
Source mother
● Household
· direct · ~0.92
Mother
Lana Chapman
b. ~1861
Source mother
● Household
· direct · ~0.92
Mother
Margaret Chapman
b. ~1861
Source mother
● Household
· direct · ~0.92
Father
Frederick Chapman
b. ~1869
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Chapman
Son · 1920 · age 23 · b. ~1897 · Massachusetts
★ You are viewing this record
Sibling
Bertha Bowman
Sibling · 1920 · age 27
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 — Barnstable, Massachusetts
Open full size
1920 US Federal Census — Barnstable, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu679unit:0215)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Marguerite | 27 | Daughter | — | Massachusetts |
| 52 | James Cahoon | 44 | Head | Glassblower | Massachusetts |
| 53 | Clara E. Cahoon | 34 | Wife | — | Massachusetts |
| 54 | Walter Cahoon | 10 | Son | — | Massachusetts |
| 55 | Leslie B. Cahoon | 5 | Son | — | Massachusetts |
| 56 | Edward A. Cahoon | 2 | Son | — | New York |
| 57 | Gertrude M. Cahoon | 0 | Daughter | — | New York |
| 58 | Sarah E. Berry | 25 | Head | — | Massachusetts |
| 59 | Lillian S. Berry | 7 | Daughter | — | Massachusetts |
| 60 | Franklin D. Berry | 4 | Son | — | Massachusetts |
| 61 | Edward A. Edward | 63 | Head | — | Massachusetts |
| 62 | Lillian C. Edward | 52 | Wife | — | Massachusetts |
| 63 | Isaac Robbins | 61 | Head | Farmer | Massachusetts |
| 64 | Polly F. Robbins | 56 | Wife | — | Massachusetts |
| 65 | Ellis G. Robbins | 25 | Son | Master Mariner | Massachusetts |
| 66 | Polly S. Crowell | 88 | Mother-in-law | — | Massachusetts |
| 67 | Frank P. Nickerson | 56 | Head | — | Massachusetts |
| 68 | Sarah J. Nickerson | 55 | Wife | — | Massachusetts |
| 69 | Edward Abbott Nickerson | 33 | Nephew | Mariner | Massachusetts |
| 70 | Laura Kelly | 69 | Head | — | Massachusetts |
| 71 | Josiah Foster | 71 | Head | Laborer | Massachusetts |
| 72 | Mary S. Foster | 68 | Wife | — | Massachusetts |
| 73 | Charles H. Ellis | 55 | Head | Master Mariner | Massachusetts |
| 74 | Sadie B. Ellis | 53 | Wife | — | Massachusetts |
| 75 | Bessie Bearse | 62 | Head | Cook | Massachusetts |
| 76 | Andrew Edwards | 59 | Head | — | Massachusetts |
| 77 | Tryphena B. Edwards | 56 | Wife | — | Massachusetts |
| 78 | Oliver Kelly | 66 | Head | Fisherman | Massachusetts |
| 79 | Edward Sears | 70 | Head | — | Massachusetts |
| 80 | Angeline Baker | 79 | Housekeeper | Laborer | Massachusetts |
| 81 | Nelson C. Cahoon | 55 | Head | Laborer | Massachusetts |
| 82 | Maria A. Cahoon | 55 | Wife | Housekeeper | Massachusetts |
| 83 | Annie R. Sears | 70 | Head | Laborer | Massachusetts |
| 84 | Dana P. Burgess | 56 | Sister | — | Massachusetts |
| 85 | Mary L. O'Neil | 44 | Head | — | Massachusetts |
| 86 | Mary L. O'Neil | 14 | Son | — | Massachusetts |
| 87 | Atherton Crowell | 59 | Head | Housekeeper | Massachusetts |
| 88 | Tryphena Crowell | 44 | Wife | — | Massachusetts |
| 89 | James F. Small | 57 | Head | Manufacturer | Massachusetts |
| 90 | Augusta P. Small | 55 | Wife | — | Massachusetts |
| 91 | Hiram C. Doane | 67 | Head | Farmer | Massachusetts |
| 92 | Lina V. Doane | 63 | Wife | — | Massachusetts |
| 93 | Marjorie L. Doane | 22 | Daughter | Retail Merchant | Massachusetts |
| 94 | Frederick Chapman | 51 | Head | — | Massachusetts |
| 95 | Margaret Chapman | 59 | Wife | Bookkeeper | Massachusetts |
| 96 | Robert S. Chapman THIS PERSON | 23 | Son | Merchant | Massachusetts |
| 97 | Bertha E. Bowman | 27 | Daughter | — | Massachusetts |
| 98 | Ralph S. Bowman | 3 | Grandson | Electrician | Massachusetts |
| 99 | Alvin L. Crowell | 68 | Head | — | Massachusetts |
| 100 | Lottie F. Crowell | 70 | Wife | Retail Merchant | Massachusetts |
Pedigree Summary
Robert + 1 sibling
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)