Mary T. Sinnen

Mary T. Sinnen was born to eternal life on Thursday, April 22, 2021, at the age of 67. 

She was born on Aug. 22, 1953, in Buffalo, N.Y., to Dr. James and Mary (nee Mox) Hanlon. 

Mary was united in marriage to her loving husband Robert Sinnen on Dec. 11, 1976.

After receiving her bachelor’s degree in nursing from Marian College in Fond du Lac, Mary began a lengthy and dedicated career of service in nursing spanning 43 years. While working full time and raising her family, she went on to obtain her master’s degree and nurse practitioner degree from Marquette University. At the age of 57, Mary earned her doctorate degree in nursing practice from St. Catherine University in St. Paul, Minn. 

Mary was a lifelong learner and teacher and exemplary nurse and nurse practitioner, eventually specializing in nephrology. Her passion and knowledge led her to work many years for Wheaton Franciscan Healthcare (Ascension) and Milwaukee Nephrologists. 

Mary treated all her patients as if they were her own family and was highly respected and admired by her colleagues. She was affectionately known as “the kidney queen” in the Milwaukee area. 

Mary also enjoyed teaching Pilates, traveling with her husband and friends, walks in nature, music and dancing and above all spending time with and loving her grandchildren. 

Mary is survived by her husband of 44 years Robert; children Becky Sinnen Tuma of Kaukauna, Mike (Elizabeth) Sinnen of Marion, Ill., Brenda (Joel) Pence of Oostburg and Megan Sinnen (Gary Dhaliwal) of Cedarburg; and grandchildren Autumn, Braeden and Holden Tuma, Mike and Brendan Sinnen, Owen, Natalie, Logan, Cameron and Collin Pence and Bodhi and soon to arrive baby Dhaliwal. 

Proud to be of Irish ancestry, Mary is further survived by her adoring siblings Jim (Pearl) Hanlon, Anne Soles, Judy (Bob) Ewers, Mike (Renee) Hanlon, Kathy Hanlon, Tim (Sue) Hanlon, Peggy (Jake) Gudikunst and Dan (Mary) Hanlon; sister-in-law Char Hanlon; aunts; nieces; nephews; cousins; many other relatives and friends.

Mary was preceded in death by her parents, brothers Tom and Patrick Hanlon and granddaughter McKenna Tuma.

A Mass of Christian burial will be held on Thursday, April 29, 2021, at 5 p.m. at St. Joseph Catholic Church, 1619 Washington St., Grafton, WI 53024. Father Jim Weyker will preside over Mass. 

The family will receive visitors at the church from 2 until 4:30 p.m. Immediately following Mass, the family invites all visitors to continue honoring Mary’s life and memory outdoors at Veterans Park in Grafton. 

In lieu of flowers, memorials are suggested to the National Kidney Foundation, Family Sharing of Ozaukee County or a charity of your choice. 

Eernisse Funeral Home is assisting the family. Online condolences can be left at  



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Ozaukee Press

Wisconsin’s largest paid circulation community weekly newspaper. Serving Port Washington, Saukville, Grafton, Fredonia, Belgium, as well as Ozaukee County government. Locally owned and printed in Port Washington, Wisconsin.

125 E. Main St.
Port Washington, WI 53074
(262) 284-3494


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