Chip said a mouthful along with the others, I will share my experience.
My father was an alcoholic who quit drinking the day I came home from the hospital and went to his grave sober. I was raised in a wonderful alcohol free home, but I began a 40 year drinking career at the age of 12, I have not had a drop in 11 months today.
I can tell you that my drinking did impact my children.
I can also tell you that my recovery has had a bigger impact on them, my son is an alcoholic and due to my alcoholism and my recovery he was able to determine he was an alcoholic as well and called me for guidance when he came to this realization.
My oldest daughter told me the reason she does not drink is due to my drinking, my other children I will just have to wait and see.
The only advise I will give is to make sure your children know from an early age that you are an alcoholic, share your ESH with them, and STAY SOBER!!!!! They may or may not need a sober dad one day if they develop a problem of thier own.