Wertp72
My information comes from where exactly those who say the club became "official", "legal", "established", "held their first agm" etc etc in 1873 does not - the records of the time.
Daddy Dunlop, SFA annuals, Rangers member cards, newspaper reports, SFA history books, player autobiographies (Archie Steel, for example) all say 1872. There is absolutely no significance given in any of these early records to the 1873 date.
Robert McElroy's Complete Record is an outstanding book and well researched, but there's just one wee error when he states the club were formed in February 1872. There's no evidence to back this up and I suspect it was just a wee arithmetic slip when the book was written. Daddy Dunlop, writing as True Blue in the SFA annual of the early 1880s, looked back and recalled the first Rangers game against Callander was played in May 1872, "some two months after talks first began in West End Park to form the club" (or words to that effect). ie two months before May 1872 is March, not February. Just a month, I know, but historical accuracy is very important.
Again, I suspect the talk about becoming established and legal and all that other stuff in 1873 is just a (lazy) conclusion people made recently after the weight of evidence grew for 1872. "Oh well, if they played their first games in 1872, they MUST have formed a committee, held AGMs etc in 1873 and that's why the official birth date is 1873.' There's no evidence to suggest that at all. Just because I've got a pint of milk in my fridge doesn't mean to say I've got a cow in my living room.
I'm no maestro, btw, it's all there in the Gallant Pioneers (except the bit abut February/March 1872), so this is Gary Ralston's argument. Check it out for yourself.