RB
Robert Barr — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Robert Barr across the 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Harry & Robert — first a son (b.~1918), then head of a 3-person household.
Age 12
b. ~1918
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Barr |
| Given Name | Robert E |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1918 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Winifred Barr | Spouse | — | 33 | ~1897 |
| Henry Barr | Head | — | 43 | ~1887 |
| Robert Barr | Son | — | 12 | ~1918 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 2
Middlesex, Massachusetts · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barr |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 12
Middlesex, Massachusetts · implied b. ~1918 — 3 household members
| Surname | Barr |
| Given Name | Robert E |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barris |
| Given Name | Robert W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | EAST CHELMSFORD |
| 1935 Residence (County) | MIDDLESEX |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| 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 Barr across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Barr (~0.92 confidence) and father Robert Barris (~0.92 confidence) and mother Annie Barr (~0.81 confidence) and mother Lydia Barris (~0.92 confidence) and mother Winifred Barr (~0.92 confidence) and mother Winifred Barr (~0.92 confidence). The pedigree spans 2 generations with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Father
Harry Barr
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Robert Barris
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Annie Barr
b. ~1845
Source father>mother
● Household
· direct · ~0.81
Mother
Lydia Barris
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Winifred Barr
b. ~1897
Source mother
● Household
· direct · ~0.92
Mother
Winifred Barr
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Barr
Son · 1930 · age 12 · b. ~1918 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel922:0061)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Francis Smith | 8 | daughter | None | Massachusetts |
| 2 | Katherine Smith | 6 | daughter | None | Massachusetts |
| 3 | Robert Morse | 25 | Head | Artist | England |
| 4 | Florence Morse | 24 | wife | None | Massachusetts |
| 5 | Alayna Morse | 0 | daughter | None | Massachusetts |
| 6 | George Grieve | 62 | Head | Machinist | England |
| 7 | Margaret A Littlefield | 65 | housekeeper | Housekeeper | Canada English |
| 8 | Robert J Houston | 60 | Head | Second Hand | Massachusetts |
| 9 | Edith M Houston | 60 | wife | None | Canada English |
| 10 | Grace E Houston | 35 | daughter | Bookkeeper | Massachusetts |
| 11 | Harold Ellis | 21 | Head | Paper Cutter | Massachusetts |
| 12 | Amelia Ellis | 54 | mother | None | England |
| 13 | William Kenney | 46 | Head | Installer | New Hampshire |
| 14 | Lucy Kenney | 44 | wife | None | Canada English |
| 15 | Emerald Kenney | 19 | daughter | None | Massachusetts |
| 16 | Henry N. Barr | 43 | Head | Engraver | Massachusetts |
| 17 | Winifred Barr | 33 | wife | None | Massachusetts |
| 18 | Robert E Barr THIS PERSON | 12 | son | None | Massachusetts |
| 19 | — | None | — | — | — |
| 20 | — | None | — | — | — |
| 21 | — | None | — | — | — |
| 22 | — | None | — | — | — |
| 23 | — | None | — | — | — |
| 24 | — | None | — | — | — |
| 25 | — | None | — | — | — |
| 26 | — | None | — | — | — |
| 27 | — | None | — | — | — |
| 28 | — | None | — | — | — |
| 29 | — | None | — | — | — |
| 30 | — | None | — | — | — |
| 31 | — | None | — | — | — |
| 32 | — | None | — | — | — |
| 33 | — | None | — | — | — |
| 34 | — | None | — | — | — |
| 35 | — | None | — | — | — |
| 36 | — | None | — | — | — |
| 37 | — | None | — | — | — |
| 38 | — | None | — | — | — |
| 39 | — | None | — | — | — |
| 40 | — | None | — | — | — |
| 41 | — | None | — | — | — |
| 42 | — | None | — | — | — |
| 43 | — | None | — | — | — |
| 44 | — | None | — | — | — |
| 45 | — | None | — | — | — |
| 46 | — | None | — | — | — |
| 47 | — | None | — | — | — |
| 48 | — | None | — | — | — |
| 49 | — | None | — | — | — |
| 50 | — | None | — | — | — |
Pedigree Summary
Robert
Gen 1 · 5 parents
~0.92
Gen 2 · 1 grandparents
~0.81
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)