Been at it a while and every few years have to take a break because of frustration.
Had no idea so much work had gone in to the Internet ! But
now I remember why I'd get frustrated.
My line settled on the spelling "Greider" but in the early to mid 1800's I've found them with the spellings -Cryder, Kreider, Crider, Krider, Grider and Greider. (Even saw a few that appeared to be relatives who had an "N" or a "T" in place of the "D")
Just noticed the soundex feature here and got the following results - for Greider = 22 possibilities ; for Kreider = 15 hits ; for Creider = 78 hits !
First of all the soundex completely missed the most important phonetic issue - it did not see the interchangability of the K, G and C.
And secondly of the 78 supposed matches for the C I only saw one that was near to this family.
No wonder I'm almost bald.