RH
Robert Harmon — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Robert Harmon across the 1920, 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed), with identified parents Walter & Anna — first a son (b.~1918), then head of a 6-person household.
Age 22
b. ~1918
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Harmon |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 14 |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Riveter |
| Industry | Aircraft |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Riveter |
| Township / Ward | Election District 14 |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Harmon | Son | — | 22 | ~1918 |
| Walter Harmon | Head | — | 57 | ~1883 |
| Allan Harmon | Son | — | 20 | ~1920 |
| Dorothy Harmon | Daughter | — | 28 | ~1912 |
| Carlton Harmon | Son | — | 17 | ~1923 |
| Annie Harmon | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Baltimore, Maryland
Son, age 2
Baltimore, Maryland · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 12
Baltimore, Maryland · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Son, age 22
Baltimore-County, Maryland · implied b. ~1918 — 6 household members
| Surname | Harmon |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 14 |
| 1935 Residence (County) | Baltimore |
| Occupation | Riveter |
| Industry | Aircraft |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Harmon across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Walter Harmon (~0.92 confidence) and mother Anna Harmon (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Walter Harmon
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Anna Harmon
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Harmon
Son · 1940 · age 22 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Allan Harmon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carlton Harmon
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Harmon
Sibling · 1940 · age 28
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-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01506-01072)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Agella Hunkemeyer | 58 | Wife | — | England |
| 42 | Lawrence Hunkemeyer | 35 | Son | Draftsman | England |
| 43 | Adelle Hogg | 34 | Daughter | Auditor | England |
| 44 | Rosalie Hogg | 10 | Granddaughter | — | Maryland |
| 45 | John Bauer | 22 | Son-in-law | Farmer | Maryland |
| 46 | Lily May Bauer | 28 | Daughter | — | Maryland |
| 47 | Sandra V. Bauer | 2 | Granddaughter | — | Maryland |
| 48 | William E. Mcgarvey | 36 | Head | Heater | Maryland |
| 49 | Helen R. Mcgarvey | 31 | Wife | — | Maryland |
| 50 | Ruth Mcgarvey | 16 | Daughter | — | Maryland |
| 51 | Katharine E. Mcgarvey | 13 | Daughter | — | Maryland |
| 52 | Gordon E. Mcgarvey | 5 | Son | — | Maryland |
| 53 | W. Cordell Mcgarvey | 2 | Son | — | Maryland |
| 54 | Ambrose Kernan | 51 | Head | Truck Driver | Maryland |
| 55 | Barbara Kernan | 41 | Wife | — | Maryland |
| 56 | William Kernan | 9 | Son | — | Maryland |
| 57 | George Kernan | 22 | Son | Odd Jobs | Maryland |
| 58 | Thelma Kernan | 20 | Daughter-in-law | Clerk | Maryland |
| 59 | George Kernan | 0 | Grandson | — | Maryland |
| 60 | Anna Gail | 56 | Head | — | Maryland |
| 61 | Wilmer D. Gail | 30 | Son | Mechanic | Maryland |
| 62 | Luther Aug. Henkel | 37 | Head | Pastor | Maryland |
| 63 | Coralie Henkel | 39 | Wife | — | Maryland |
| 64 | Walter H. Harmon | 57 | Head | Machinist | Virginia |
| 65 | Annie E. Harmon | 53 | Wife | — | Maryland |
| 66 | Dorothy N. Harmon | 28 | Daughter | Secretary | Maryland |
| 67 | Robert M. Harmon THIS PERSON | 22 | Son | Riveter | Maryland |
| 68 | Allan S. Harmon | 20 | Son | Tool Maker | Maryland |
| 69 | Carlton R. Harmon | 17 | Son | — | Maryland |
| 70 | Catherine Young | 53 | Head | — | Maryland |
| 71 | Henry Goldsworthy | 41 | Head | Helper | Maryland |
| 72 | Viola Goldsworthy | 42 | Wife | — | Maryland |
| 73 | Henry E. Goldsworthy | 18 | Son | Helper | Maryland |
| 74 | Rita Goldsworthy | 16 | Daughter | — | Maryland |
| 75 | Millard Goldsworthy | 14 | Son | — | Maryland |
| 76 | Louis B. F. Frank | 56 | Head | Painter | Maryland |
| 77 | Sophie Frank | 55 | Wife | — | Maryland |
| 78 | James L. Frank | 33 | Son | Office Work | Maryland |
| 79 | Louis A. Frank | 19 | Son | Mechanic | Maryland |
| 80 | Bernard Seling | 33 | Head | Bus Driver | Maryland |
Pedigree Summary
Robert + 3 siblings
Gen 1 · 2 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)