JD
John Dunn — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Dunn across the 1910, 1920 and 1930 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents John & William — first a son (b.~1909), then head of a 5-person household.
Age 21
b. ~1909
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Estimator |
| Industry | Marble Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Estimator |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1909 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Dunn | Daughter | — | 18 | ~1912 |
| Dorothy Dunn | Daughter | — | 23 | ~1907 |
| John Dunn | Head | — | 59 | ~1871 |
| John Dunn | Son | — | 21 | ~1909 |
| Annie Dunn | Spouse | — | 55 | ~1875 |
Census Appearances
1910
Baltimore, Maryland
Son, age 3
Baltimore, Maryland · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
None, Maryland
Son, age 11
None, Maryland · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 21
Baltimore, Maryland · implied b. ~1909 — 5 household members
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Estimator |
| Industry | Marble Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 John Dunn across 3 US Census years (1910, 1920 and 1930) in 2 locations, using XGBoost record linkage. Identified parents: father John Dunn (~0.92 confidence) and father William Dunn (~0.92 confidence) and mother Gertrude Dunn (~0.92 confidence) and mother Bessie Dunn (~0.92 confidence) and mother Annie Dunn (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Dunn
b. ~1871
Source father
● Household
· direct · ~0.92
Father
William Dunn
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Gertrude Dunn
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Bessie Dunn
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Annie Dunn
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Dunn
Son · 1930 · age 21 · b. ~1909 · Maryland
★ You are viewing this record
Sibling
Margaret Dunn
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Dunn
Sibling · 1930 · age 23
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
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus857unit:0071)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Margaret Bull | 56 | Sister | Housekeeper | Maryland |
| 52 | James O. Hulsey | 56 | Head | Night Watchman | Maryland |
| 53 | Irene Hulsey | 52 | Wife | — | Maryland |
| 54 | Raymond O. Hulsey | 18 | Son | Stenographer | Maryland |
| 55 | Robert G. Hulsey | 16 | Son | — | Maryland |
| 56 | Gertrude E. Hulsey | 54 | Sister-in-law | Clerk | Pennsylvania |
| 57 | John E. Dunn | 59 | Head | Machinist | Maryland |
| 58 | Annie L. Dunn | 55 | Wife | — | Maryland |
| 59 | Dorothy G. Dunn | 23 | Daughter | File Clerk | Maryland |
| 60 | John Dunn THIS PERSON | 21 | Son | Estimator | Maryland |
| 61 | Margaret L. Dunn | 18 | Daughter | — | Maryland |
| 62 | John J. Justice | 25 | Head | Proprietor | Maryland |
| 63 | Bertha M. Justice | 27 | Wife | — | Maryland |
| 64 | John H. Justice | 7 | Son | — | Maryland |
| 65 | Myrtle Kemp | 35 | Boarder | Cashier | Maryland |
| 66 | Emory W. Whitfield | 49 | Head | Commercial Trav. | Alabama |
| 67 | Esther Whitfield | 58 | Wife | — | Pennsylvania |
| 68 | Robert E. Barnes | 65 | Head | Inspector | Maryland |
| 69 | Annie V. Barnes | 64 | Wife | — | Maryland |
| 70 | Wallace F. Mccauley | 52 | Son-in-law | Manager | Maryland |
| 71 | Daisy L. Mccauley | 45 | Daughter | — | Maryland |
| 72 | John J. Young | 34 | Head | Machinist | Maryland |
| 73 | Ethel M. Young | 18 | Wife | — | Maryland |
| 74 | Clarence Webb | 22 | Roomer | Loom Repairer | Maryland |
| 75 | Dorothy M. Webb | 16 | Roomer | Spooler | Maryland |
| 76 | George A. Lego | 43 | Head | General Inspector | Maryland |
| 77 | Helen M. Lego | 28 | Wife | — | Maryland |
| 78 | Anna L. Lego | 2 | Daughter | — | Maryland |
| 79 | James E. Lego | 0 | Son | — | Maryland |
| 80 | Rudolph Bender | 27 | — | Baker | New York City |
| 81 | Nellie Bender | 22 | Wife | — | Holland |
| 82 | Nellie Bender | 6 | Daughter | — | New Jersey |
| 83 | Rudolph Bender | 5 | Son | — | New Jersey |
| 84 | Ferdinand Bender | 3 | Son | — | New Jersey |
| 85 | Robert E. Gill | 30 | Head | Carpenter | Maryland |
| 86 | Ruth R. Gill | 28 | Wife | — | Maryland |
| 87 | Romaine Gill | 11 | Daughter | — | Maryland |
| 88 | Virginia Gill | 9 | Daughter | — | Maryland |
| 89 | Robert Gill | 5 | Son | — | Maryland |
| 90 | Benjamin F. Harrison | 52 | Head | Engineer | Maryland |
| 91 | Annie M. Harrison | 46 | Wife | — | Maryland |
| 92 | Walter L. Harrison | 23 | Son | Driver | Maryland |
| 93 | Mildred L. Harrison | 21 | Daughter | Key Punch Opr. | Maryland |
| 94 | Robert L. Harrison | 17 | Son | Chauffeur | Maryland |
| 95 | William G. Sipple | 77 | Head | Inspector | Maryland |
| 96 | Maggie T. Sipple | 52 | Wife | — | Maryland |
| 97 | Lillian A. Sipple | 33 | Daughter | Dressmaker | Maryland |
| 98 | John Eigendrod | 77 | Father-in-law | Carrier | Maryland |
| 99 | George Haynes | 42 | Head | Repairer | Maryland |
| 100 | Lola Haynes | 35 | Wife | — | Virginia |
Related Census Records
Pedigree Summary
John + 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 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)