[3][4] She is also part owner of the Seattle Underground tours company, Bill Speidel Enterprises.
[5] Speidel was raised in the Eastside cities of Bellevue and Hunts Point, Washington[6] before moving to Europe when she was 12 years old.
[6][7] She operated a jewelry-making business, making items in copper and other materials, before becoming a sculptor.
"[6] She is largely self-taught,[6] though she credits George Tsutakawa for teaching per patination formulations and technique.
[1] To commemorate the 25th anniversary of the creation of the Bloedel Reserve on Bainbridge Island, fourteen geometric outdoor sculptures created by Speidel were placed there in 2013, the first artworks at the location.