Anyone know where the surname "ISDALE" originates and what clan it belongs to?

[dundonian]

What clan does the surname "ISDALE" belong to?

[Lachlan09]

The only thing I can think of is that it derives from a long-established Ocean Township, New Jersey family, whose alumni includes Ashley and Jennifer.

[Duthill]

It may be that the family name originates from this location 54°11'26.59" N 7°35'09.91" W in Ireland , or it maybe that the location was named for the family .
The geographical term 'dale ' suggests a northern England / southern Scotland origin .

As to a historical clan connection , there may not be one . Consulting the various clan historians /seanachie one by one may yield an answer.