I have discovered some additional information that makes my original request for info in November out-of-date. So here is the current situation.
I am looking for help on the Mullen Family who lived in Alexandria VA in the mid-19th century. To the best of my current knowledge, William L. Mullen, b. 1843 to John Catherine Mullen of Prince William County, married Laura Virginia Greene, b. 1850 to George Henry Martha Greene of Alexandria, on 8 Dec 1868. They had a son, William Henry Mullen, b. Oct 1870 in Alexandria, d. Sept 1910 in DC. William L. also died in Sept 1910, and Laura V. d. 1932, both in Alexandria.
I am also searching for info on the descendents of William Henry Mullen. He married Mary Grace Rudderforth in DC in 1893 and they had 9 children, 7 of whom survived to adulthood. My line is through his son, Frank Bertram Mullen, b. 1907. The other Mullen chldren (all born in DC and MD)were:
Joseph A., Mason Thomas, Jack Rudderforth, William Benoit, Ernest, and Alice Bredina Mullen Senn.
I need to verify that the Mullens in VA are indeed the family I should be researching and are actually those related to William H. I sincerely appreciate any info anyone has on these lines.