platanus occidentalis and FDR

I could never find sycamore sprouts because I didn’t know what I was looking for.

A sycamore can grow to massive proportions, typically reaching up to 30 to 40 m (98 to 131 ft) high and 1.5 to 2 m (4.9 to 6.6 ft) in diameter when grown in deep soils. The largest of the species have been measured to 53 m (174 ft), and nearly 4 m (13 ft) in diameter. Larger specimens were recorded in historical times. In 1744, a Shenandoah Valley settler named Joseph Hampton and two sons lived for most of the year in a hollow sycamore in what is now Clarke County, Virginia.[8] In 1770, at Point Pleasant, Virginia (now in West Virginia)[9] near the junction of the Kanawha and Ohio Rivers, George Washington recorded in his journal a sycamore measuring 13.67 m (44 ft 10 in) in circumference at 91 cm (3 ft) from the ground.[10]–Wikipedia

Gall

q alba leaves
My favorite oak tree has galls on some of the leaves. This the topside
oak leaves
this the underside. Hoping the hive mind can tell me the culprit. Prognosis?