RH
Robert Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Robert Harris across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Robert & Sidney — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Harris |
| Given Name | Robert P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Mechanical Plant |
| Industry | PW |
| Class of Worker | 1000 |
| Highest Grade | Hs 3 |
| 1935 Residence | 44 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Mechanical Plant |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1917 |
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 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Mary Harris | Daughter | — | 21 | ~1919 |
| Arthur Harris | Head | — | 61 | ~1879 |
| Robert Harris | Son | — | 23 | ~1917 |
| Ruby Harris | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Baltimore, Maryland
Son, age 2
Baltimore, Maryland · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Robert H. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 13
Baltimore, Maryland · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Robert D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 23
Baltimore-City-County, Maryland · implied b. ~1917 — 4 household members
| Surname | Harris |
| Given Name | Robert P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (County) | Baltimore City |
| Occupation | Mechanical Plant |
| Industry | PW |
| Class of Worker | 1000 |
| Highest Grade | Hs 3 |
| 1935 Residence | 44 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Harris (~0.92 confidence) and father Sidney Harris (~0.92 confidence) and father Arthur Harris (~0.92 confidence) and mother Ruby Harris (~0.92 confidence) and mother Lizzie Harris (~0.92 confidence) and mother Lillian Harris (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Harris
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Sidney Harris
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Arthur Harris
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Ruby Harris
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Lizzie Harris
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Lillian Harris
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Harris
Son · 1940 · age 23 · b. ~1917 · Maryland
★ You are viewing this record
Sibling
Mary Harris
Sibling · 1940 · 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
1940 US Federal Census — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01524-00527)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louise Mcconnehy | 4 | Daughter | — | Maryland |
| 2 | Julia Mcconnehy | 79 | Mother | — | Maryland |
| 3 | Blanche C. Mcconnehy | 62 | Cousin | — | Maryland |
| 4 | Arthur Harris | 61 | Head | Bowling Alley | North Carolina |
| 5 | Ruby V. Harris | 61 | Wife | — | North Carolina |
| 6 | Robert P. Harris THIS PERSON | 23 | Son | Mechanical Plant | Maryland |
| 7 | Mary E. Jr. Harris | 21 | Daughter | Confectionery Co. | Maryland |
| 8 | Robert C. Ewing | 31 | Head | Copper & Brass Co. | Maryland |
| 9 | Elizabeth D. Ewing | 34 | Wife | Hospital Office | Maryland |
| 10 | Harry T. Jones | 60 | Head | Baptist Church | Virginia |
| 11 | Florence H. Jones | 54 | Wife | — | Virginia |
| 12 | Julia Ann Jones | 26 | Daughter | Casualty Co. | Virginia |
| 13 | Annie Lou Jones | 26 | Daughter | Clerk | North Carolina |
| 14 | Burton S. Rush | 57 | Head | Oil Distributing | Pennsylvania |
| 15 | Nellie L. Rush | 51 | Wife | — | Pennsylvania |
| 16 | Elizabeth W. Rush | 16 | Daughter | — | Pennsylvania |
| 17 | Warren J. Morken | 25 | Son-in-law | Mail Order House | Maryland |
| 18 | Mary Louise Morken | 27 | Daughter | — | Pennsylvania |
| 19 | George W. Jr. Stay | 33 | Head | Federal Gov. Fingerprint Bureau | Pennsylvania |
| 20 | Alice Stay | 30 | Wife | — | Maryland |
| 21 | George W. Iii Stay | 5 | Son | — | Maryland |
| 22 | Ada N. Stay | 70 | Mother | — | Michigan |
| 23 | Robert L. Hart | 35 | Head | — | Maryland |
| 24 | Helen B. Hart | 63 | Wife | — | Virginia |
| 25 | Robert Lee Hart | 34 | Son | — | Virginia |
| 26 | Samuel T. Best | 49 | Head | Public School | Delaware |
| 27 | William Best | 20 | Son | Dept. Store | Maryland |
| 28 | Nancy J. Best | 20 | Daughter | — | W. Virginia |
| 29 | Roland B. Tunstall | 26 | Head | Broadcasting | Maryland |
| 30 | A. Leslie Tunstall | 24 | Wife | — | Maryland |
| 31 | Josephine M. Patrick | 39 | Head | Own Home | Maryland |
| 32 | Adeline M. Patrick | 33 | Sister | Mail Order House | Maryland |
| 33 | Leo Hamburger | 44 | Head | Dental Laboratory | Maryland |
| 34 | Maida Hamburger | 44 | Wife | — | Pennsylvania |
| 35 | Joan Hamburger | 6 | Daughter | — | Maryland |
| 36 | Stanford Hamburger | 5 | Son | — | Maryland |
| 37 | Helen Hamburger | 74 | Mother | — | Maryland |
| 38 | Carrie Hamburger | 40 | Sister | — | Maryland |
| 39 | Vincent Polichan | 43 | Head | Brokerage | Maryland |
| 40 | Adelaide Polichan | 40 | Wife | — | Maryland |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)