Thank you Zlatica for your very useful suggestion. I have found 84 listings for CARAGATA in the 2007 online Romanian phonebook (www.whitepages.ro), and 78 for Adamache. Since there are hundreds of listings for common Romanian surnames such as Stefan & Mircea, I therefore feel confident that Caragata & Adamache are rather rare Romanian surnames & that the chances of their all being distantly related to each other, are much increased. I have recently learned from relatives in Romania that my great-grandfather, Tudor Caragata (b ca 1850-55; d ca 1895-97), & his wife, Cristina Oprica (b ca 1858; d ca 1920), did not originally hail from the vicinity of Rimnicu Sarat, but from a village located about 40-50 miles south - namely Zavoaia, located in the southern part of Braila County. Braila & the two neighbouring counties account for about 70% of all the listings for Caragata in Romania. I had a letter professionally translated into Romanian, & mailed it out two weeks ago to all the 36 Caragatas in Braila County. Now I have begun to receive some very interesting and promising responses - some in English but mostly in Romanian, which I unfortunately do not understand. Regarding the Adamaches, there are nine listings for Adamache in the town of Ciorasti, County (Judetul) Vrancea, & I will soon write to all of them.