The title is something along the lines of “what do we do/are we going to do about (insert name)” or “the (insert name) family.”   It’s a hardcover illustrated book published around the late 1960s to early 1970s about a teenage boy in a large family who keeps growing and growing, and eventually outgrows his bed, his shoes, his clothes. The family I think was modeled after the TV classic ‘The Waltons’, and the grandparents live with them. As the teenage boy grows and grows, the illustrations show family members amused by how he’s outgrowing everything. I think he even spouts a beard after awhile. I think the boy’s height eventually surpasses his father and his grandfather.