The Collaborative International Dictionary of English v.0.48:
Whall \Whall\, n. [See Wall-eye.]
A light color of the iris in horses; wall-eye. [Written also
whaul.]
[1913 Webster]
The Collaborative International Dictionary of English v.0.48:
Whaul \Whaul\ (hw[add]l), n.
Same as Whall.
[1913 Webster]