My Husband's DNA through Ancestry.com shows his first match at 1922cm's over 45 segments. This person has a small tree (750 names) going back about 4 generations. My husband also matches 5 other people in this persons father's family... 3 first cousins and 2 nephews. The problem is this family is completely unknown to us and in talking to the match family/cousins we can find no connection. With that high of a cm match we concluded the match and my husband must be 1/2 brothers as they are within 10 years of the same age, so that rules out grandparents and nieces/nephews as my husband is the oldest of his known siblings. Sadly the match person passed away just months before I made contact with the family. At first I thought the issue to be on my husbands side, as in his father was not who he had believed.. in the past few days I have discovered matches through both lines on my husbands fathers side so now it looks like the issue was with the matches parents. Because of the sketchy information on the other side, and the fact that the match person has just passed away and the family is dealing with that, I just don't know how to proceed. I'd like to document this line if it is truly a sibling even though he has passed away.
Can someone suggest how to proceed?