I have 5 pages of info on your husband's branch of the Romanos of Lapio. The oldest ancestor is Saverio Romano, born before 1760. The info is in the form of a descendant report from Family Tree Maker. I will e-mail it to you. I don't want to post it here because many of the people on the chart are still living.
My wife and I met a branch of your husband's family in Lapio. The oldest was Giuseppe Romano, born in 1925 in Lapio. His daughter, Filomena Romano, and her husband Rinaldo Trodella treated us like close family, even though there was no known relationship. I'm guessing Filomena is a second or third cousin to your husband.