Sheila
is the usual spelling.
Although the upper classes are a rule unto themselves.
(
chaotic_illuminator proud spacehopperist,
Sun 14 Mar 2004, 22:28,
archived)
I before E
except after C.
Apparently.
(
Chrico is a bounder and a cad,
Sun 14 Mar 2004, 22:29,
archived)