John William (Bill) Drenning, 93, of Frederick, Maryland, died Aug. 26, 2022, at Homewood at Frederick. He was predeceased solely 18 days earlier by his spouse of 72 years, Sarah Catharine (Sari) Thomas Drenning, and beforehand by his sisters, Patricia Dudrow, of Woodsboro, Maryland, and Ellen Hersch, of Dover, Pennsylvania. He is survived by his son, James Craig (Jim) Drenning and spouse Gale, of Chestertown, Maryland; his daughter, Jenifer (Jeni) Drenning Dean and husband Donald (Don), of Frederick, Maryland; his brother, C. Dahl Drenning and spouse Peggy, of Woodsboro, Maryland; 5 grandchildren, Bryan Drenning and spouse Denise, Craig Drenning and spouse Jaime, Rebecca Dean Smith and husband Walter, Erin Drenning Johnson and husband Chris, and Emily Dean and accomplice Nate Clendenen; and eight great-grandchildren, Jackson Drenning, Nolan Drenning, Harper Drenning, Ruby Smith, Wesley Drenning, Zoey Johnson, Declan Smith and Theodore Johnson.Born Sept. 16, 1928, in Bruceville, Maryland, he was a son of John Wesley (Cap) Drenning and Mary Kathryn (Kitty) Eyler Drenning. Bill attended Woodsboro Elementary School; Walkersville High School, the place he was president of the senior Class of 1945; and Johns Hopkins University (JHU), graduating in 1950 with a bachelor’s diploma in electrical engineering. While attending JHU, he was home supervisor for the Sigma Phi Epsilon fraternity, and a member of the Johns Hopkins Glee Club.On Oct. 1, 1949, he married his highschool sweetheart, Sarah Catharine Thomas. While they had been residing in Frederick, he labored for the Potomac Edison Co. as a junior engineer within the Rural Line Department. In 1950, Bill was transferred to the R. Paul Smith energy station in Williamsport, Maryland, the place he labored as a take a look at engineer. In 1951, the household relocated to Baltimore, the place Bill started a 25-year profession with Koppers Co. Inc. Metal Products Division, initially as a subject take a look at and repair engineer, touring all through the U.S. and Canada, beginning up and qualifying electrostatic precipitators in paper mills, metal mills, cement crops and electrical producing stations. Following a two-year stint within the subject service division at Koppers, he was transferred to the analysis and improvement division, the place as a senior engineer, he designed, developed and field-tested electrical controls for electrostatic precipitators and corrugated paper field equipment. During that point, he was granted 26 U.S. Patents; coauthored and introduced a number of technical papers; was a member of the electrostatic processes subcommittee of the Institute of Electrical and Electronic Engineers (IEEE); and was a member and officer of the Technical Association of the Pulp and Paper Industry. In 1969, he was appointed director of engineering within the Container Machinery Department of Koppers in Glenarm, Maryland. He was a registered skilled engineer within the State of Maryland.In 1975, he resigned from Koppers and moved to Frederick County, the place he, Sari and members of the family managed and operated Monocacy Knoll Farms (MKF), a company of household farms. MKF produced customized beef and lamb for the patron market; milk for the business market by means of the Maryland & Virginia Milk Producers Association; and crops for the money markets. In 1985, town of Frederick acquired the dairy farm by eminent area for growth of the Frederick airport, which in the end precipitated the tip of MKF farming operations.In 1986, Bill started working as a senior engineer at Rotorex close to Walkersville, Maryland. While there, he traveled the world, evaluating and qualifying producers of airtight electrical motors to be used in window air conditioners. During this time, he designed and constructed gear and wrote pc software program to check and qualify the motors. He retired from Rotorex in 1999, persevering with as a marketing consultant till 2004.Bill was all the time on the forefront of pc expertise. He wrote pc applications as a part of his job and wrote others for his personal use to perform such duties as monitoring and monitoring the efficiency of an lively photo voltaic array that he and Sari had put in on their hilltop property in Woodsboro. He was keen on tinkering with pc {hardware}, preferring to design and construct his personal desktop computer systems, all the time upgrading as expertise superior. Bill was a meticulously detailed record-keeper, even digitizing and cataloging tons of of household pictures for posterity and assembling a set of household music recordings. Both he and Sari had been avid genealogists, researching and documenting their respective household histories, a legacy that will probably be carried on by their grandson, Bryan Drenning.Bill has donated his stays to the Maryland Department of Health State Anatomy Board for medical schooling and analysis, after which he will probably be cremated, and his ashes will probably be inurned with these of his spouse within the Monocacy Building mausoleum at Mount Olivet Cemetery in Frederick, Maryland. The lives of Bill and Sari will probably be celebrated at 1 p.m. Sunday, Oct. 2, 2022, at Homewood at Frederick. Family and mates are invited to affix this celebration.In lieu of flowers, the household requests that donations be made in Bill and Sari’s reminiscence to the Alzheimer’s Association.
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