Dictionary of Medieval Names
from European Sources

Tallboys m. Old French tailler 'to cut' + Old French bosc 'wood'.

Originally a byname for a wood-cutter, this came into use as a given name in England in the 16th C.

England
Early Modern English
1549 Taylboys StAnthonlin p. 7
Cite as: S.L. Uckelman. "Tallboys". In S.L. Uckelman, ed. The Dictionary of Medieval Names from European Sources, Edition 2016, no. 4. http://dmnes.org/2016/4/name/Tallboys.