1901, D Graham McKay, One hundred y rs of Þe United Presbyterian Church of Greenville : from þe Shank’s Inne to þe present time, 1901, Advance Argus Co., cover title.
2003 September 7, “zbihniew” (username), “Let's use þorn”, in alt.language.english.spelling.reform, Usenet:
why isn’t þorn (thorn) letter used in English language anymore? I þink it’s quite useful as “þ” (th) sound (or sounds as þere are two sounds represented by þis letter or by ‘th’; I mean þis from “þink” and þe oþer from “þe”) is very popular in English language. one of þe most popular English words imho is “þe” which contains þis sound.