Good suggestions from the other quilters. Since you live with your DD it would be difficult to make the quilt without her seeing it so maybe the best thing to do right now is to put your husband's things away. As time passes you'll know when it's the right time to make the quilt.
Like some of the others, I'm sorry I didn't quilt when DH and I lost our parents many years ago. Lost a brother and sister a few years ago but didn't have access to their old clothes so I made some quilts and donated them in their names to their church's community outreach programs.