I need an opinion without confirmation bias about my paternal great-grandfather Mathias Endres, Endres-57 . I want to folks can go over the information (or family antidotes) and give their opinions.
First off I want to state that my paternal grandparents were first cousins. My paternal grandfather's mother and my paternal grandmother's father were siblings. I know that my DNA results with matches could be skewed to show a closer relationship that what is on paper.
My grandfather, Mike Theodore Enders (https://www.wikitree.com/wiki/Enders-348) was supposedly born in Missouri on 21 December 1884 to my paternal great-grandmother Mary Ottilia (Knoebel) Endres ( https://www.wikitree.com/wiki/Knoebel-19 ) and Mathias Endres.
My paternal grandfather had three siblings, August (http://[[Enders-349|August Enders (1875-1935)]] ), Crescentia (https://www.wikitree.com/wiki/Enders-351 ), and Edir (1880- 1883) https://www.wikitree.com/wiki/Enders-534.
Per a descendant of August, August was supposedly born out of wedlock and "assumed" the surname of Endres after his mother's marriage. Family stories should be taken with a huge grain a salt, and perhaps family members may have misunderstood/misremembered what they were being told, but I find it difficult to believe that family members would make up a story of illegitimacy.
A possible marriage document is at https://www.familysearch.org/ark:/61903/1:1:XJ6F-D3L but I am uncertain since there is another couple living in Dubuque County with the same names. If it is their marriage record it would have taken place only a few months before Crescentia birth.
A delayed birth certificate for Crescentia, with an affidavit give by her aunt (sister to her mother), in 1943 states Mathias was a brewer https://www.ancestry.com/discoveryui-content/view/108683:61441
If you review the census records for the years 1880 until 1900, you will find that Mathias is not listed in the census in the household with Mary. In the 1900 US census Mary lists herself as "widowed". I have not found clear documentation of Mathias Endres in this country after his possible entry into the US in 1866, other than he is listed as the children's father in their marriage record and Crescentia's delayed birth certificate. A possible death record found by a second cousin listed a death date of 7 April 1902 in St. Louis https://www.ancestry.com/discoveryui-content/view/12638080:1172?ssrc=pt&tid=77826622&pid=34373586627
I have DNA results starting a range of 180 cM on down to the low 20's of cM that go back to surnames of Schaller and Marquardt that do not seem to connect to any of my **known** ancestors. The only other **known** match thus far, a 1c1r, who's grandmother was my father's sister, shares these unknown matches.
I am not sure what logical conclusions should be drawn from this "information" . Opinions on the father of Mike Theodore Enders? Is the man listed as the parent on the documentation or not?