I'm looking for Charles E.T. Doig married Maud Gascoyne around 1912 - 1915 in Britain or Ireland.

Here is an Irish marriage cert that is not mine ancestor, but may be of assistance to someone else:

Marriage at Whiteabbey i nthe Parish of Carnmoney in the Co. of Antrim 13th July 1912:

Charles Edward Doig, Full age, Bachelor, Occupation: Druggist, Residence Belfast, Father William Doig, His occupation Druggist.

Rhea McCracken, Full age, Spinster, No Occupation, Residence Greenisland, Father James McCracken, Occupation Farmer.

Married in the Presbyterian Church in the Presence of Witnesses Edgar Macklin Condy and Eva McCrascken