Might be named Anna per census records
Obit Quincy Daily Hearld Jul 14 1894
18. Mary Anna Duker
According to the 1930 census she was nevered married
20. Anna Mary Duker
According to the 1930 census she was never married
Death date may be 2/9/1892--QDJ obit
29. Mathilde Duker
may be Matilda
33. Clara Duker
May be Caroline and if so then born 1862 or there abouts