Showing those Relationships

For an upcoming issue, I'm working on creating a chart that shows multiple relationships. For a family on which I'm working, here are the basic problems:

• After their spouses died, A married B.
• Five years later, the daughter of A marries the son of B.
• A few years down the road, the granddaughter of A marries the son of B.
• And before A and B ever married, the daughter of A married a 2nd cousin of B.

Got that straight? It took me a while to figure it out and I might even have left out a relationship along the way.

Casefile Clues tries to have appropriate, easy to interpret illustrations. This one may be a little difficult.