Not a pen name.
Both Chudleigh and Candish are old English families, mentions in historical records. Some were knighted, e. g., Lord Candish mentioned in litigation in 1624.
Some modern Chudleigh's have had an orchard west of Toronto, Canada, for three generations, and operate a commercial bakery. Ted Chudleigh is a member of the Ontario legislature.

Lady Mary Chudleigh (1656-1710) was a poet, famous for "To the Ladies," speaking of servitude to a husband...

Then but to look, to laugh, or speak,
Will the nuptial contract break.
Like mutes, she signs alone must make,
And never any freedom take:
But still be govern'd by a nod,
And fear her husband as a God:
Him still must serve, him still obey,
And nothing act and nothing say,
But what her haughty lord thinks fit,
Who with the power, has all the wit.
.....

Chudleigh is an old wool market town in Devon.