Как перевести на английский следующие предложения?

1 Ok, Sam I'm going to tell you how it has happened. You know, I married a widow and she had a daughter. Then my father who was a widower too married our daughter. So my father became my son-in-law. Got it?
2 Yes, I understand. But how could you become a grandpa to yourself? (How could it happen you became your own grandpa?)

Поправка к ответу Сергея:

Then my father, who was a widower too, married our daughter.
Thus my father became my son-in-law.

1. Ok, Sam, I'll tell you how it has happened. So you know, I've married a widow who had a daughter. Then my father, a widower, has married our daughter, so my father has became my son-in-low ( brother-in low). Is it clear?
2. Yes, it is. But how have you became a grandfather to yourself?

1. Ok. Sam, I tell you how it happened. Well, i married a widow, she has daughter. Then my dad, a widower also, married the daughter, so my dad became my son-in-law. Do you understand?
2. Yes, OK. But how you became grandfather to yourself?

All right, Sam, Iet me tell you the way it happened. I married a widow, you see, and that widow had a daughter. Then my father, who was also a widower, got married to our daughter. This made my dad my son-in-law, got it?
Yeah, only how did you become your own granddad?
:)

1) Fine, Sam, I will tell you how all these happened. You know, I married the widow, and she had a daughter. Then my father, who was the widower too had married on our daughter. Thus my father become my son in law. Is it clear now?
2) Yes, it is clear. But how does it happen that you become a grandfather to yourself?