"My Daddy, who is of Welsh heritage, and his relatives have black hair and either blue or brown eyes, with fair or ruddy skin tone. I thought this was distinctive because I always associated black hair with Italians and Jews."
Many Jews first travelled to the Islands with the Romans as traders and business folk.
I find the topic of early Britain most fascinating. Michael Woods (the PBS guy) has at least two books concerning the legacy of early Britain (well worth reading. Do a search on amazon.com to bring up Woods' catalogue.)