How the two Sigs, father and son, became published authors at the same time

ROCHESTER — Dr. Sig Muller and Sig Muller Jr., father and son, have seen the hand of God work in both their lives, they say.

Dr. Muller, a retired Mayo Clinic physician, sees “the finger of God” in his rag-to-riches life story. Born in a remote town in Panama, Dr. Muller was born in the midst of the Great Depression and was 2 years old when his dad died of lung cancer. Uprooted by his mom to begin new lives as immigrants in the U.S., Dr. Muller worked his way to become a doctor of dermatology at Mayo Clinic.

For his son, Sig, a one-time Mayo High School swimming state champion, divine intervention came more abruptly. Sig was at friends' house in South St. Paul when he suffered cardiac arrest. Paramedics, using an automated external defibrillator, were able to restart Sig’s heart.

Today,