How To Write A Leave Letter For Cousin Marriage . Kith and kin relatives like brother's cousin's sisters wedding ceremony. I am writing to request a leave of absence for my son, clay, to attend my cousin’s marriage ceremony. 4+ Simple Leave Application For Marriage Top Form Templates from topformtemplates.com Kith and kin relatives like brother's cousin's sisters wedding ceremony. The class teacher, (your standard), (your school name). Leave letter to attend a cousin’s marriage.