I keep crossing paths with you and it looks like we're both searching for the same thing coming through different lines. Yours through John Holman and mine through Richard Holman.
For Richard's wife Dolly Ann (I've seen it written once as Dollie Ann also) I have a maiden name of Tucker with her birth year being July of 1865 (although the 1880 census shows a corrected age of "20 years old - after that the remaining census records I have show 1865 as the year).
I will use the information you've provided and see if it shakes any information loose. I will let you know if I find anything pertinent or worth mentioning.
Interesting to see where my middle name - Miles - began.