Thanks for all this data!
I did know about Lydia's second marriage to Byron Warren. I will add this information to my tree.
Milo's father was gone, gone, gone from Milo's life by the time Lydia married Byron. So I've never gotten a definitive record for Milo's father. My mother (Milo's granddaughter) was told that Milo's father's name was Seymour Hanks. That would fit with the Azaro S. Hanks. However, once again, no actual documentation. I'm not at all sure that the Azaro Hanks who shows up in Vermont after the Civil War is Milo's father. Sigh. That's why I'm fixated on some sort of birth record that ties Milo to Azaro (or someone....).
Milo's Obituary from Miles City Montana reported that he was born in Packwaukee, Marquette County. I was hoping for some sort of birth register from that era, either in a church or through some locality. Is it too early for that in Marquette?