Works published before 1923 are in the public domain...since the Centennial book was published in 1892, it is free from copyright. The book is over 320 pages long, so it will be difficult to ascertain if individual names are included as there is no full index of surnames available in the original. For a chart on copyrighted and public domain works, try the following addy: http://www.unc.edu/~unclng/public-d.htm