Strip mining for lead and zinc in Oklahoma during the early 1970’s.
 

Building two office buildings, one in 1968 of 34,000 square feet and 1980 of 44,000 square feet.
 

Developed residential properties of 3-5 acre home sites in 1975 in Overland Park, Kansas.
 

Developing one of the first data processing systems for dentistry in the early 1980’s.
 

Acquisition of over 100,000 acres of mineral rights in Kansas from 1981-1982 for resale for oil well exploration and drilling.
 

Owned part interest in an oil well drilling company in 1981-1983 called Sunrise Drilling.
 

Established Sho-Mor gas and oil, which owned numerous shallow oil wells in Kansas during the early 1980’s.
 

Inventor and manufacture of a product called Medi Safe, which was an offshoot of the Tylenol scare of the early 1980’s. Medi Safe was a small plastic box with a combination lock created to keep medicine and prescription drugs out of the reach of children.
 

Acquired numerous companies over the years
 

In 1987 Jerry was part owner of a company taken public whose principal business was the resale of long distance communications to consumer and business for Sprint and other long distance providers.