Dear Susan,
I am saddened by your news and know how much you miss him. My prayers are with you and your family during this most difficult time and remember all the good times and memories you have to cherish. Hopefully another treatment and eventually a cure will result from our efforts here at the foundation.
There are occasional familial cases of MDS, however, these are exceptionally rare. The genetics of MDS are complex, and the influence of inborn and inherited changes is either subtle or non-existent. In cases where there is an established history of MDS in the family, I always let other family members know that they should have annual bloodwork done and to watch their counts as an indicator. If counts are abnormal, I would then make an appointment to see a hematologist.