William Laas was born on July 4, 1883 in Monroe, Michigan and was the proprietor of a hotel and parking garage in Houston, Texas. He was the son of Johann and Dorothea (Roggelin) Laas and the second cousin of Rika (Knaack) Heiden, wife of August.

William was married to Clara Mae (Brunson, Artale) Laas  who was born May 19, 1877 in Saltilla, Mississippi. She worked as a waitress. Clara died May 21, 1952 in Harris County, Texas at the age of 75. They lived at 2307 Keene in Houston and William was the manager of a hotel.

William died on April 2, 1961 in Harris County, Texas.
 

In the pre-expressway era before 1960s, it would have been a very long drive from Texas to Michigan. Yet, William Laas and his wife often made the trip to be at the annual Heiden reunions.