1899 Saint Paul City Directory. William Aitken (1847-1929) was born in Scotland and came to America in 1886. The Union Advocate newspaper of April 1, 1904 reported that he and fellow Capitol stone mason N.I. Nelson were serving on a committee of the Stone Masons Union together. Aitkin and his wife, Margaret, raised their seven children in this house as he worked as a stone mason.