Class Notes

1950

David Erickson (Chem 52)

Age 91, as of July 31, 2022. 1960

Dr. Doug Aldrich (ChE 62)

Karolyn (from RC) and I celebrated 60 years of marriage on Aug 25, 2022. Karolyn teaches voice lessons, and I continue consulting. I've also had a book chapter published. We travel often, and are looking forward to a Rhine cruise in June and a Hawaii cruise in October. We have 10 grandkids and two great-grandkids. Life is still full of fun and joy.

Roger Myers (ME 64)

My wife of 50 years passed away in 2021. I am living in the Washington, D.C. area. I have a son, daughterin-law and grandchildren.

Francis (Dick) Schlumpberger (CE 65)

Returned to SD after 52 years.

Vincent Humann (ME 68)

Janet and I have moved back to Michigan.

Christa Smalley (ChE 18 & EMGT 20)

I am the third generation in my family to attend Minesgrandfather, Donald Hollister, (EE 68) and uncle, Steve Hollister, (CE 94) . I married my husband Sheldon Smalley on October 9, 2021. We welcomed our beautiful baby girl, Vivian Eileen Smalley, on December 22, 2022. We currently live in San Antonio, Texas, and I am not missing the northern snow.

Delmar Rumph (GeolE 68)

Jan and I are enjoying retirement on a golf course just southwest of Denver, with lots of travel to enjoy our 10 grandkids. Our hobbies are golf, obviously, pickleball, biking, hiking, and easing back into international travel post-COVID.

Don Zoss (GeolE 68 & 69)

Enjoying retirement in Sun City, AZ. One grandchild set to graduate from UC Davis and one to graduate in three more quarters.

1970

Michael Oleson (ME 73)

Staying well, doing fine, would enjoy hearing from any of the gang. mosokona1025@gmail.com

Susan L. (Schmidt) Kutcher (CE 73)

Expatriate supporting US Army Corps of Engineers (2004-2007) Iraq Reconstruction (2007-2016) South Korea Base Relocation Program

Douglas Bradfield (CE 74)

I'm retired as president of a Texas engineering firm specializing in water and wastewater facilities, road and bridge design, residential planning and design, and misc planning.

Donald Henninger (Math 74)

Retiring at end of the year. Planning a year-long Grand Photographic Portfolio Tour Down Under, Tahiti, New Zealand, Australia, Bali, SE Asia, and Fiji under auspices of

Jim Kotas (EE 68)

This summer I took our grandkids and their families to spend a week in the Black Hills. And first stop was at the Mines campus museum. We then stopped at the bookstore and outfitted everyone with a Mines t-shirt. The photo has our six grandkids with Kathy and me proudly wearing our new t-shirts. It was a great visit.

1980

Dr. Michael Koch (MinE 80)

After a prolific 42-year career, almost half that as chair of the Department of Pathology at the USD Sanford School of Medicine, Dr. Koch made valuable contributions to educating and mentoring 20 classes of medical school students. He is now retired and enjoys spending time with

1990

Walker Hoolehan (Bio/ABS 95)

Co-invented method (patent pending), and published my first author paper "An updated definition of V(D)J recombination signal sequences revealed by high-throughput recombination assays" in the prestigious journal Nucleic Acids Research . I successfully defended PhD in biochemistry.

Duane Jahn (IS 96)

Moved to Tucson, AZ, to start a new life.

Jakob Richard Berg (EE 98)

I am now an analytics data engineer at John Deere Harvester Works supporting mobile robotic integrations and defining data strategies in a manufacturing environment.

2000

Chris Johnson (MS ChE 01) my own company, 4 Hemispheres Photography, LLC. Arrangements through wife, Jane, as 4 Hemispheres Travel.

Don Wrede (CE 79) family, hunting, fishing, flying, and restoring motorcycles and cars.

Retired at the beginning of 2018 and find that I am pretty good at it. Recently compiled a list of ski areas that I have skied at in the US, Canada, and Europe and came up with 72 areas. Hoping to reach 100 before I have to hang up the sticks.

Brian Williams (GeolE 81)

I've been fortunate to have worked for and with a lot of really smart engineers and geologists along the way, and now I get to help mentor younger professionals the same way. We need to pass it on!

Alan D. Hartman (ChE 83)

We were blessed with a new grandson (Nash) on Halloween!

For the last 15 months I have been on assignment at the Institute for Nuclear Power Operations as a Senior Equipment Reliability Evaluator. This opportunity has allowed me to travel the country and the world, helping to provide insights for higher reliability and safety.

Nicole King (Geol 06)

Started a new position with BHP and moved to Tucson, AZ!

Felicia Christensen (CEng 06)

Since my new job with The Home Depot corporate IT is 100% remote, this allowed me to move back to my hometown of Rapid City! I'm excited to be back around family

Stuart Calhoon (ME 72) and the Black Hills, and hope I can get involved with alumni events at Mines!

Stuart and Liz moved from Los Altos, CA to Cape Cod, MA, in 2021. They bought a very old (1850) house in Provincetown, where their younger son Brian and his husband Tom own and operate a guest house. It's a completely new life, which includes having snow in the winter. Look us up if you come this way.

Mitch Nachtigall (IE 06)

Was promoted to the rank of Lieutenant Colonel at a ceremony in Rapid City on March 31. Mitch has served in the Army National Guard for more than 23 years, including 10 years of active duty service and two overseas tours. Mitch was commissioned as a 2nd Lieutenant through the South Dakota Mines Army ROTC program in 2006.

Rose Luvaas (ChE 08)

Rose was awarded the Women MAKE Award. Rose is the Site Operations Manager with LyondellBasell in Houston, TX.

Benjamin Titus (Math 22)

Currently attending USD's Knudson School of Law after graduating from Mines. Class Notes are compiled from public information and notices received from our alumni and friends. To submit information, please email us at alumni@sdsmt.edu.

Katelyn Kirsch (MetE 18)

I started a new job as an engineer with Moeller Aerospace in March 2023. I will be relocating within Michigan to the top of the mitten.

Brandon Golenda (MET 18)

Started new job as an Investment Banker at a firm located on Wall St.

Mikayla is a design engineer at KC Engineering in Sioux City, IA, and Justin is a water infrastructure engineer in South Sioux City, NE. Isabel MacLachlan (ChE 22) and Livi Jurrens (ME 23) were bridesmaids. Steve Pepke (IE 20) , Carson Hunt (CE 21) , Tyler Rehmeier (CE 20) , and Trey Smith (CE 20 MS 21) were groomsmen. Mikayla and Justin currently reside in Sioux City, IA, with 2 dogs and a cat.