Name Marianna "Mary" Bartkowski (Sosnowska)
Notes Frank Hatton's cemetery notes has Bartkowski, Marianna - 0/0/1852 - 8/4/1938

Phyllis Long added from the death certificate these notes:
Mary Bartkoski was born Aug. 15, 1852 in Poland and died Aug. 4, 1938 in Capps Creek Twp., Barry Co., MO. She was the widow of Joseph Bartkoski. Parents were not named. John Washeck of Monett, MO was the informant.

1900 Census Missouri; Barry; Capps Creek; District 3
Joseph Bartkowski, head, born Feb. 1843 Poland, age 57, married 26 years, parents born Poland, immigrated to US in 1882
Mary, wife, born Sept. 1854 Poland, age 45, mother of 11 children, 7 living, parents born Poland, immigrated to US in 1882
Frances, dau., born Jan. 1882 OH, age 18, single
Bruno, son, born Sept. 1883 OH, age 16
Frank, son, born Feb. 1886 MO, age 14
Adam, son, born Aug. 1887 MO, age 12
Rosa, dau., born July 1889 MO, age 10
Jennie, dau., born Apr. 1893 MO, age 7
Joseph, son, born Sept. 1896 MO, age 3

MIGHT BE this Mary below:
1920 Census Missouri; Barry; Corsicana; District 8
Mary Bartkoski, head, age 73, widowed, immigrated to US in 1873, born abt. 1847 Poland, parents born Poland
Rose, granddau., age 19, born abt. 1901 MO, parents born MO

1920 Census Kansas; Wyandotte; Kansas City Ward 5; District 180
John Washick, head, age 25 born MO, parents born Poland, fireman on the railroad
Jenny, wife, age 25, born MO, parents born Poland

1930 Census Kansas; Wyandotte; Kansas City; District 36
John Washick, head, age 34, married at age 23, born MO, parents born Poland, fireman for railroad
Jennie, wife, age 34, married at age 23, born MO, parents born Poland
Mary Bartkoski, mother in law, age 76, widowed, born Poland, parents born Poland
Resource Census, Death Certificate - Dates from Book-Past & Present
Researcher Phyllis Long
Frank Hatton