Leppert Mortuaries - Nora

740 East 86th St, Indianapolis, IN


William Arthur Sigman

June 21, 1928May 3, 2020

WILLIAM A. SIGMAN, age 91, of Indianapolis, IN passed away May 3, 2020. He was the son of the late Allan E. and Irma (Steuck) Sigman, born on June 21, 1928 in Dubuque, Iowa.

Bill was honored with the 33rd Degree in the Scottish Rite Masonry and was a trustee of the Indianapolis Scottish Rite Cathedral. He was also a 50 year member of the Northwest Lodge Number 770 F&AM, as well as a member in National Sojourners, Inc. and Murat Shriners.

After graduating from Iowa State University with a Bachelor of Science in Mechanical Engineering, he joined Johnson Controls in 1950. From 1967 to 1991 he served as their Indiana Branch Manager until his retirement in 1991. In 1991 he became a partner in the Architectural/Engineering firm of BSA Life Structurers, retiring in 2010. He was a member of Scholastic Engineering Honoraries Tau Beta Pi and Pi Tau Sigma. He served in the US Army and the US Army Reserves as an Artillery Officer from 1950 until his discharge in 1958 and was a life member of the American Legion and Field Artillery Officers Organization.

He was a member of St. Luke’s United Methodist Church and was active in numerous civic organizations including The Indianapolis Downtown Kiwanis Club and was their past President and was an emeritus member of the Junto Club of Indianapolis joining in 1968. He was a board member of Community Health Network Foundation, Indiana United Methodist Children’s Home, American Red Cross, Visionary Enterprises Inc., Near North Development Corporation and Ivy Tech State College Foundation as well as President of Region 8 Ivy Tech College Board of Trustees and was the first person honored by being elected for an honorary degree by Ivy Tech State College.

Bill was a member of Delta Upsilon Fraternity; Life Member of Indiana and National Society of Professional Engineer being elected the Indiana Engineer of the Year in 1999; Life Member of American Society of Heating and Air Conditioning Engineers. He was also a member of the Order of the Knoll and Knights of St. Patrick, Iowa State University. Active in the state forestry circles, he was past president and past state secretary of Indiana Forestry Woodland Owners Association and was Indiana Outstanding Tree Farmer in 1978. He also served as a life member of the Indiana Forestry Education Foundation Board of Directors.

Bill was honored in 2010 as a Distinguished Hoosier by Gov. Mitchell Daniels.

He was preceded in death by his wife of 52 years, Rita Birchard Sigman, and his brother James A. Sigman. He is survived by his son, Allan W. Sigman; daughters, Lynn K. (C. Richard) Bohr and Christine (Jason) Spangle; four grandchildren: Richard W. (Stephanie) Bohr, Carrie Bohr, Jack Sigman, and Charlotte Clayton; one great grandson, Charles T. Bohr.

Due to the current situation, a memorial service will be held at a later date. You are invited to visit the website www.leppertmortuary.com where you may share a personal memory of Bill or arrange a memorial gift to Scottish Rite Children’s Learning Center, 650 N. Meridian Street, Indianapolis, IN 46204 or Community Health Network Foundation, 7330 Shadeland Station #150, Indianapolis, IN 46256. Leppert Mortuary, Nora is assisting with funeral arrangements.


No public services are scheduled at this time. Receive a notification when services are updated.


William Arthur Sigman

have a memory or condolence to add?

Don and Alison Steel

May 11, 2020

Lynn and family: what a great man with his great family. For years working with the Downtown Kiwanis Club, years of your Mom and Dad sitting a few rows behind us on the 50 yard line at Colts games until the suites expansion took our seats, and years ago when we moved our offices into the Precedent right across the street from BSA! Always in motion and always so positive! There is an argument we don’t make them like him anymore!

With deepest sympathy,
Don and Alison

Kevin Campbell

May 11, 2020

Lynn, Allan, Christine,
My condolences to you and your family. Bill was such a big part of my life. I was introduced to him from a neighbor while I was still in high school. He told me when I started working for him that he needed someone he could trust and I took that very serious. I spent many weekends with him working at the tree farm. There was never a dull moment!
I will never forget the time when we were in the field by Big Creek that has a slope to it. He was at the one end of the field and got off the tractor. The tractor started rolling down the slope and your dad was trying to get back on it to stop it. I was afraid I was going to witness yet another tractor accident. I'm sure I broke a some kind of record getting across the field, to push him out of the way before he broke another bone.
I respected your dad tremendously and looked up to him. He taught me a lot, not just trees, but life in general.
His passion for the tree farm definitely rubbed off on me.
My thoughts and prayers are with you and your family.

Dave Bigler

May 11, 2020

To the Sigman family! Bill was certainly a big part of my life and career at Johnson Controls. He taught me many lessons about control systems, contractors, architects and consulting engineers. But more importantly, he taught me many life lessons that I still try to utilize every day. We became very good friends over the years and each time we visited our daughter in Carmel, I always made time for breakfast or lunch with Bill. We will miss Bill and his phone calls, visits and great comradery.

Janice Breier

May 9, 2020

Sincere condolences in the loss of your father, grandfather and great grandfather. I worked with Bill at BSA. He was a mentor to many of the young engineers, and architects as well. Everyone had the utmost respect for Bill. It was a sad day when he retired from BSA, but many of the engineers as well as architects stayed in contact with him as a friend and mentor. I saw him just a few months ago at Marquette Manor, we had a very pleasant visit. He will be missed by all that knew him!

Ann Hughes

May 8, 2020

To a great friend and neighbor to our family! He has always been there for us.
We will miss you. And proud to have known you all these years.
Love, The Hughes family💞

John W. Duncan

May 8, 2020

To the family and friends of Bill Sigman,
I was saddened to hear of Bill's passing. Bill was a friend and a wonderful Scottish Rite Masonic brother. Anything Bill did was done to perfection. He was involved in many community and civic organizations. From his military service, the Masonic fraternity, his friends, family and church, if his name was associated with it, he did it well! He held strong opinions when it came to politics, self-reliance, and personal responsibility, but a kinder and more generous man you will never meet! He considered himself to be a very blessed man, and being the good Christian that he was, also believed in passing them along to those in need. I will miss my friend at our next 'breakfast club' outing. May God bless and keep you my brother!
John W. Duncan

Gary Little

May 8, 2020

First met Bill while working with him at BSA LifeStructures, but had heard about him previously through mutual friends who worked for him as engineers with Johnson Controls. Always walked away learning something about mechanical engineering and / or life in general after conversing with him. Kind man- generous with his time- always leading by example that's what I remember most about Bill. Thoughts and prayers to Bill and his family.

Jim Eckels

May 6, 2020

Dear Alan, Lynn & Chris;
My sincere condolences on the loss of your father. As so many have said he meant so much to each and everyone . Having worked for him from the time I joined JCI in 1964 till he retired in 1991, I was able grow from a naive young guy from Wisconsin to a successful sales person due to his patience, teaching of how to handle easy to hard situations, allowing of mistakes but learn from them, to many more to mention.
I will miss the couple of times a year we would get together for lunch, not a JCI work lunch but close to or more than three hours of many subjects; from past clients & friends, politics, the Methodist Church. The lunches always sent me away with a feeling I was still learning something from him.
Bill was a great individual to be around.
With our thoughts & prayers to the family;
Jim & Sue Eckels

Gerry Mann

May 6, 2020

My wife Edna and I loved Bill. He and I were brothers as 33rd Degree Freemasons, The Junto Businessmen's Club, and the St. Luke's United Methodist Church. We were Civil War enthusiasts together and he contributed an impressive Civil War library to a Civil War Memorial of which I am involved.
God Bless Bill Sigman, my good friend, engineer, tree lover and community servant. He will be missed. Gerry Mann

Kevin Dolan

May 6, 2020

Bill was such a great friend to our parents, especially our father. After dad's passing we stayed in touch and he provided me with some great counsel and a few laughs. Just a great, great guy.

The whole family is in our prayers at this time.


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