Can someone get married on the day of fathers yorzeit?
Answer:
Yes. For one who has not yet had children, the prohibition to get married is only during the 7 days of shiva. Otherwise the prohibition is for the the 'shloshim' the first 30 days of aveilus. After that, including the yortzeit, it is permissible to get married.
Sources:
see Shulchan Aruch, Yoreh Deah, 392:1,2
