Rowland Family Tree The Rowland Family Tree has 3058 names, 1065 Marriages and includes 8 generations and 725 surnames. That means 59,572 text files. Due to all the information, this site does take time to load. Once you click on a tree file or name index, just give it time and the file will load. Start your tour at the index of names, from the family tree or at the list of pictures.