Tad Lincoln's music teacher, William Withers jr?

[Eva Elisabeth]

As for Tad and the drums, Julia Taft mentions that when the boys buried Jack the doll with honors, "they had an old broken fiddle, a banged-up horn, paper over a comb and Tad's drum.
BTW, does playing the (one) drum need a lot of teaching unless it's "the drums" as an entire set of drums?