I can take credit for very little of this, because I fail and everyone pretty much did the work for me! Rick's father's PB was utheriel's doing, the rest were found by dee_aisli, who also provided the majority of the names and made the chart. /LAZYFAIL.
How they all died will probably eventually come up ICly, but if you're curious, ask me and I'll let you know! Luckily he still has a foster "father" in the form of Tobias, icon related.