MB
Mary Brown — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cuyahoga, Ohio
Our Model Tree links this Mary Brown across the 1910, 1920 and 1930 US Censuses in Cuyahoga, Ohio (XGBoost, ~Confirmed), with identified parents Earnest & Mary — first a daughter (b.~1909), then head of a 5-person household.
Age 21
b. ~1909
Female
Daughter
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cuyahoga, Ohio |
| Surname | Brown |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Cleveland Heights 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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Brown | Daughter | — | 21 | ~1909 |
| Ernest Brown | Head | — | 61 | ~1869 |
| Margaret Short | Other | — | 19 | ~1911 |
| Mary Brown | Other | — | 50 | ~1880 |
| Ernest Brown | Son | — | 23 | ~1907 |
Census Appearances
1910
Cuyahoga, Ohio
Daughter, age 1
Cuyahoga, Ohio · implied b. ~1909 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Mary-Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Cuyahoga, Ohio
Daughter, age 11
Cuyahoga, Ohio · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Cuyahoga, Ohio
Daughter, age 21
Cuyahoga, Ohio · implied b. ~1909 — 5 household members
| Surname | Brown |
| Given Name | Mary Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Mary Brown across 3 US Census years (1910, 1920 and 1930) in Cuyahoga, Ohio, using XGBoost record linkage. Identified parents: father Earnest Brown (~0.92 confidence) and mother Mary Brown (~0.92 confidence) and mother Mary Brown (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Earnest Brown
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Mary Brown
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Mary Brown
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Brown
Daughter · 1930 · age 21 · b. ~1909 · Ohio
★ You are viewing this record
Sibling
Ernest Brown
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 — Cuyahoga, Ohio
Open full size
1930 US Federal Census — Cuyahoga, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1784:0212)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sophie Fuller | 30 | Servant | Waitress | Germany |
| 2 | Ernest B Brown | 61 | Head | Merchant | England |
| 3 | Mary L Brown | 50 | Wife-H | — | Ohio |
| 4 | Ernest B Jr Brown | 23 | Son | Salesman | Ohio |
| 5 | Mary Louise Brown THIS PERSON | 21 | Daughter | — | Ohio |
| 6 | Margaret Short | 19 | Servant | Cook | Czechoslovakia |
| 7 | Charles R O'Malley | 35 | Head | Accountant | Ohio |
| 8 | Helen M O'Malley | 30 | Wife-H | — | Pennsylvania |
| 9 | William H Kelly | 56 | Head | Merchant | Ohio |
| 10 | Eleanor Kelly | 27 | Daughter-H | Nurse | Ohio |
| 11 | Ella M Smith | 75 | Sister | Cook | Ohio |
| 12 | Caroline Andrews | 72 | Head | — | Ohio |
| 13 | William H Fribley | 42 | Head | Salesman | Ohio |
| 14 | Alta M Fribley | 39 | Wife-H | — | Ohio |
| 15 | Dorothy B Fribley | 7 | Daughter | — | Ohio |
| 16 | Thomas A Nabb | 34 | Head | Salesman | Ohio |
| 17 | Ethel S Nabb | 33 | Wife-H | — | Ohio |
| 18 | Thomas A Jr Nabb | 3 | Son | — | Ohio |
| 19 | Leon B Mead | 44 | Head | Vice President | Florida |
| 20 | Mildred E Mead | 47 | Wife-H | — | England |
| 21 | Eugene N Sommer | 36 | Head | Lighting Engineer | Ohio |
| 22 | Harriet R Sommer | 36 | Wife-H | — | Ohio |
| 23 | Marion Sommer | 8 | Daughter | — | Ohio |
| 24 | Helen Leedy | 18 | Sister | — | Ohio |
| 25 | Douglas A Sullivan | 41 | Head | Vice President | Ohio |
| 26 | Margaret A Sullivan | 32 | Wife-H | — | Ohio |
| 27 | Douglas A Jr Sullivan | 4 | Son | — | Ohio |
| 28 | Maude Hogan | 43 | Servant | Servant | Tennessee |
| 29 | William H Sullivan | 44 | Head | Broker | Ohio |
| 30 | Elizabeth M Sullivan | 37 | Wife-H | — | Pennsylvania |
| 31 | Juanita Glover | 18 | Servant | Maid | Alabama |
| 32 | James D Bennett | 37 | Head | Manager | District of Columbia |
| 33 | Edith P Bennett | 32 | Wife-H | — | New Hampshire |
| 34 | Priscilla Bennett | 6 | Daughter | — | Ohio |
| 35 | Lina Breuer | 28 | Servant | House Maid | Germany |
| 36 | Howard Stauden | 47 | Head | Doctor | Ohio |
| 37 | Lila B Stauden | 42 | Wife-H | — | Ohio |
| 38 | Donald E Stauden | 11 | Son | — | Ohio |
| 39 | Frank B Reno | 40 | Head-H | Saleslady | Pennsylvania |
| 40 | Kenneth M Reno | 20 | Son | Salesman | Pennsylvania |
| 41 | Elizabeth F Reno | 17 | Daughter | — | Ohio |
| 42 | Alexander M Flora | 52 | Head | Vice President | Ohio |
| 43 | Eliza B Flora | 46 | Wife-H | — | Ohio |
| 44 | Samuel B Flora | 22 | Son | — | Ohio |
| 45 | Tom M Gerdes | 50 | Head | Board Chairman | Indiana |
| 46 | Lillian S Gerdes | 44 | Wife-H | — | Maryland |
| 47 | Joseph H Gerdes | 21 | Son | — | Georgia |
| 48 | Mary E Gerdes | 19 | Daughter | — | Georgia |
| 49 | Tom M Jr Gerdes | 18 | Son | — | Georgia |
| 50 | Beula Bertalott | 78 | Servant | Housekeeper | Pennsylvania |
Related Census Records
Pedigree Summary
Mary + 1 sibling
Gen 1 · 3 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)