I love the illustrative line quality here and I’m nearly 100% certain that this must be the start of a portrait of my great-grandfather, Henry J Pfaff (Lee’s father)… my mom says Lee was his particular favourite …

Lee Franclemont, portrait study (Henry Pfaff), 1940s, pencil on paper. Photo credit John FN Franclemont.
Reference:
Henry J Pfaff, date and photographer unknown (early 1900’s)