Another cousin popped out of the Internet ether last week to ask what I could help her identify her great grandfather. She found me on the Internet. Her suspect was Paul Glen Day, son of Theodore Barber Day. I was pleased to corroborate her information, moving the rascal from suspect to definitely guilty as charged. I refer to my grandfather's half-brother as a rascal because he has frustrated many genealogists by using aliases. He is found in the 1930 U.S. Census as Gus Day.
Anyway, I fired back a quick response and received another in reply.
"Thank you so much for responding! I am literally crying right now because I have worked so long and had on this, and it has all been such a mystery to me and my parents for years."
I've received a lot more help over the years than I've given other genealogists, so I'm always thrilled when I can light up someone's day; especially if they are a cousin.