That's soo funny, they had the same dress! my parents got married in 1975 so it was platforms and bellbottoms all around, the Bridesmaids dress was white longsleeved with blue flowers (like curtains) and she wore a blue plastic hat with a white plastic flower on it (my Mam bought this for her at the last minute cos she refused to do anything with her hair)
Today is my parents' 30th wedding anniversary. they are not speaking so no celebrations there! Oh well.