MC
Mary Case — 1930 US Census Record
Model Tree available1930 United States Federal Census · Berks, Pennsylvania
Our Model Tree links this Mary Case across the 1920, 1930 and 1940 US Censuses in Berks, Pennsylvania (XGBoost, ~Confirmed), with identified parents Clarence & Samuel — first a daughter (b.~1913), then head of a 5-person household.
Age 17
b. ~1913
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Berks, Pennsylvania |
| Surname | Case |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Reading City |
| Est. Birth Year | ~1913 |
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 |
|---|---|---|---|---|
| Catherine Case | Daughter | — | 22 | ~1908 |
| Harry Case | Son | — | 15 | ~1915 |
| Florence Case | Other | — | 44 | ~1886 |
| Mary Case | Daughter | — | 17 | ~1913 |
| Clarence Case | Head | — | 55 | ~1875 |
Census Appearances
1920
Berks, Pennsylvania
Daughter, age 7
Berks, Pennsylvania · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Case |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Berks, Pennsylvania
Daughter, age 17
Berks, Pennsylvania · implied b. ~1913 — 5 household members
| Surname | Case |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Berks-County, Pennsylvania
Daughter, age 27
Berks-County, Pennsylvania · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kase |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Reading City |
| 1935 Residence (County) | Berks |
| Occupation | 0 |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Case across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clarence Case (~0.92 confidence) and father Samuel Case (~0.92 confidence) and mother Grace Mull (~0.92 confidence) and mother Jennie Case (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clarence Case
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Samuel Case
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Grace Mull
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Jennie Case
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Case
Daughter · 1930 · age 17 · b. ~1913 · Pennsylvania
★ You are viewing this record
Sibling
Harry Case
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Case
Sibling · 1930 · age 22
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 — Berks, Pennsylvania
Open full size
1930 US Federal Census — Berks, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2001:1070)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ammon H White | 44 | Head | Foreman | Pennsylvania |
| 2 | Agnes H White | 39 | Wife-H | — | Pennsylvania |
| 3 | Ammon H Jr White | 20 | Son | Radio Engr | Pennsylvania |
| 4 | Agnes H White | 17 | Daughter | — | Pennsylvania |
| 5 | Clarence J Case | 55 | Head | Machinist | Pennsylvania |
| 6 | Florence M Case | 44 | Wife-H | Machine Op | Pennsylvania |
| 7 | Catherine R Case | 22 | Daughter | — | Pennsylvania |
| 8 | Mary E Case THIS PERSON | 17 | Daughter | — | Pennsylvania |
| 9 | Harry J Case | 15 | Son | — | Pennsylvania |
| 10 | Thomas R Rapp | 70 | Head | — | Pennsylvania |
| 11 | Sarah E Rapp | 61 | Wife-H | — | Pennsylvania |
| 12 | Daniel A Butter | 54 | Head | Carpenter | Pennsylvania |
| 13 | Emma B Butter | 58 | Wife-H | — | Pennsylvania |
| 14 | William B Graeff | 41 | Head | Boarder | Pennsylvania |
| 15 | Maude Graeff | 41 | Wife-H | — | Pennsylvania |
| 16 | Dorothy J Graeff | 25 | Daughter | Teacher | Pennsylvania |
| 17 | George W Graeff | 20 | Son | Clerk | Pennsylvania |
| 18 | John S Sheetz | 62 | Head | Machinist | Pennsylvania |
| 19 | Lillie Sheetz | 51 | Wife-H | — | Pennsylvania |
| 20 | John S Jr Sheetz | 29 | Son | — | Pennsylvania |
| 21 | Ben J Butter | 33 | Head | Knitter | Pennsylvania |
| 22 | Catherine H Butter | 34 | Wife-H | — | Germany |
| 23 | Helen E Butter | 1 | Daughter | — | Pennsylvania |
| 24 | Louis M Cassidy | 46 | Head | Engineer | Pennsylvania |
| 25 | Catherine Cassidy | 48 | Wife-H | — | Pennsylvania |
| 26 | Louis M Cassidy | 21 | Son | Clerk | Pennsylvania |
| 27 | Edith M Cassidy | 20 | Daughter | Clerk | Pennsylvania |
| 28 | David G Cassidy | 18 | Son | Inspector | Pennsylvania |
| 29 | Margaret M Cassidy | 17 | Daughter | — | Pennsylvania |
| 30 | Mary Cassidy | 15 | Daughter | — | Pennsylvania |
| 31 | Ruth Cassidy | 12 | Daughter | — | Pennsylvania |
| 32 | Clare F Cassidy | 11 | Son | — | Pennsylvania |
| 33 | Angela J Cassidy | 6 | Daughter | — | Pennsylvania |
| 34 | Paul Cassidy | 2 | Son | — | Pennsylvania |
| 35 | James G Cassidy | 42 | Head | Machinist | Pennsylvania |
| 36 | Ralph J Hague | 36 | Head | Housework | Pennsylvania |
| 37 | Helen H Hague | 34 | Wife-H | Yeoman | Pennsylvania |
| 38 | Percy S Smith | 46 | Head | Seaman | Pennsylvania |
| 39 | Mary M Smith | 45 | Wife-H | Boiler | Pennsylvania |
| 40 | Robert Smith | 28 | Son | — | Pennsylvania |
| 41 | John E Leitham | 56 | Head | Machinist | Pennsylvania |
| 42 | Mary A Leitham | 56 | Wife-H | Salesman | Pennsylvania |
| 43 | Augustus L Leitham | 26 | Son | — | Pennsylvania |
| 44 | Rose D Leitham | 14 | Daughter | Clerk | Pennsylvania |
| 45 | Aaron M Kline | 69 | Head | — | Pennsylvania |
| 46 | Mary M Kline | 61 | Wife-H | Cabinet Maker | Pennsylvania |
| 47 | Arthur S Kline | 43 | Son | — | Pennsylvania |
| 48 | Horace A Kline | 29 | Son | Handler | Pennsylvania |
| 49 | Paul P Kline | 27 | Son | Stock Carrier | Pennsylvania |
| 50 | Dorothy Kline | 23 | Daughter-in-law | Truck Driver | Pennsylvania |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 4 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)