my source is a un-published letter from Robert Potter (TX Secretary of War) to his wife Harriett, which is in the collection of the Morris County Historical Collection at the Daingerfield (TX) Public Library.
Potter's letter mentioned the names of several prominent Texicans (Houston, Potter, Lamar,DeLorenzo, et.al.), who favored that spelling.
FYI, Harriett Potter & her husband were BOTH "characters". she kept a MOUNTAIN LION for a PET,was married at least 6 times (POSSIBLY 8), practiced "injun magic" (the local indians were "scared to death of her") & frequently slept in a cypress tree on the banks of Caddo Lake.
for a fascinating & "lightly fictionalized account" of her life, read: LOVE IS A WILD ASSAULT, by Elithe Hamilton Kirkland, published 1959 & STILL in print.
you will NOT be able to put it down.
free dixie,sw