Donna Lynn MacMillan (61) passed away suddenly on May 10, 2026, surrounded by her loving family and friends. Born in Philadelphia, she was the cherished daughter of Elizabeth McCarthy Limper and William J. Manduke.

She is survived by her devoted husband of 40 years, Iain M. MacMillan, and her loving children, Iain M. MacMillan IV (Heather), Alicia E. MacMillan (Tyler Shagen), and her siblings, William Manduke Jr.(Sharon), Edward Silfies (Kelly), and Beth Houser (Mike O’Brien).

Donna was a proud and cherished Grandmother (Gigi) to Layla E. Shagen.

Her greatest joy in life was her family and her grandchild, Layla. Donna loved planting flowers and tending to her garden. She so looked forward to the hummingbirds' return for the season. She loved the holidays and getting together with family and friends. Christmas was a very special holiday; she would shower her children and grandchildren with gifts. It brought her great joy to cook for the family during the holidays, especially after her mother's passing.

Donna is a graduate of North Penn High School and the Lansdale School of Business.  Donna's career included serving as Staff Account and Payroll Manager over the years.  She will be remembered for her love of her family, her strength, and the warmth she shared with everyone she met.

Funeral Service 11 AM Saturday, May 16, 2026, at Scanlin McDonald Funeral Home, 175 East Butler Avenue Chalfont, PA 18914. Relatives and friends are invited to the visitation and the funeral on Saturday after 10 AM. Interment Private.

In lieu of flowers, donations to St. Jude Children's Research Hospital would be appreciated.