Carol... Some years ago I was in correspondence, briefly, witha Teresa Smith.She gave me her ancestral line as:Teresa (Derby) Smith/Ralph Julius Derby/Bud Frank Derby/Frank Elsworth Derby/Marshall Myron Derby/Lemuel Derby.
Her grandfather, Bud Frank Derby, was born 09 Jul 1894 in San Angelo, Texas...Married Gussie Amner Smart, who was born 27 Jun 1903 San Angelo, Texas.Their children: Violet, Bud Frank and Ralph J.
Teresa was going to give me more info, but I never heard from her again and her e-mail did not go thru.
Sorry this is all the info I have, but hopefully 'Frank Elsworth Derby' might be your next generation.A brief quote from her states that "Frank came here (TX) from Madison, WI due to his health, but he died right away.Frank was born in VT" Hope this is helpful in some way and good luck...