I want to honor my late father or grandmother

Kristin
With my son I was about to take my late grandfathers middle name William and use it for my sons middle name. With this baby I want to honor my late dad who passed away last year or my late grandmother name who was a huge influence on my childhood. However, my dad and grandmas name are... Uhh... I guess you can say... Unique. 
My dads is Alvin Lavern and grandmas is Glessie Laverne
Is there any variations to these names I could use?