My husband is the grandson of Ambrose Maddrell,his mother was Elenor Dorothy Maddrell,Henry Maddrell of Glen Chass was the father of Ambrose.
If you require any other information, a second cousin of my husband's has been researching the family tree, his name is Bruce Maddress and his address is the orginal family home. Langness View, Glen Chass, Port St Mary.
I am sure Bruce would be more than willing to help you.

The manx museum has a copy of a book for poems which was published by Ambrose.

There is also a cousin Margaret who lived in Cardiff, South Wales

Hope this is of help to you,