My husbands mother was an Alder. I have information to share. Also, about 3 years ago I received an email from a Roseanne Evans the granddaughter of Cleo(Alder)Johnston. Our computer crashed right after I received her email and in the process of time my email address has changed twice. I have tried to contact her through the address on the email but it came back undeliverable, so obviously her address has changed also. I hope to hear from some other family members. Alder is a hard name to research.