Cover for Gregg Mostaert's Obituary

Gregg Mostaert

June 16, 1955 — February 18, 2026

Long Grove

A prayer service will be held at Long Grove Community Center on February 28th at 11:30 in Gregg’s honor, followed by a Celebration of Life from 12-3. A private burial is planned at Mount Calvary Cemetery Davenport, Iowa. Memorials may be made to Long Grove Lions Club or Long Grove Civic League.

Gregg was born June 16th, 1955 in Maquoketa, IA; son of Joseph and Ruth (Schmidt) Mostaert. After graduating from Oxford Junction High School in 1973, he found his calling working at the Handicapped Development Center for 40 years. Additionally, Gregg was a successful entrepreneur who established and ran his business, Plowboys Lawn and Landscaping, for 11 years.

He fell in love, once upon a ferris wheel, with his sweetheart Catherine Ann Capesius. They were united in marriage on September 17, 1994, at Holy Family Church in Davenport, Iowa. Together, Gregg and Cathy shared 31 wonderful years, building a life rooted in love, partnership, and devotion. They were blessed with two children, Joseph and Anna, who were among Gregg’s utmost joys and proudest accomplishments. His family was the center of his world and everything he did was guided by his unwavering love for them.

Gregg moved through life with a spirit of curiosity and enthusiasm. He was deeply loving and compassionate, always giving the very best of himself to the people he cherished most. Gregg had a remarkable way of brightening every room he entered—his warm smile, quick wit, and contagious humor brought both laughter and comfort. He radiated kindness and generosity, in the moments he shared with family and friends.

Gregg held a vibrant passion for his pastimes. He enjoyed uncovering unique treasures at thrift stores and estate sales, nurturing a vast appreciation for antiques. Each discovery became even more meaningful as he researched the stories and history behind each item. Gregg was inspiring and innovative. His ideas were reflected in every landscaping project he touched. His creativity and attention to detail were evident in the beauty and care of his impeccably designed yard and home.

Those left to cherish his memory include spouse Catherine; children Joseph Mostaert and Anna Mostaert; sister Linda Carlson; In-laws: Mary Capesius, Sandra (Gary) Ragan, Julie (Chris Dalberg) and David Capesius (Renata Piotrowska), and numerous nieces/nephews. He was preceded in death by his parents, Ruth and Joseph, his brother, Dave, his nephew Rod & his father-in-law James Capesius.

To order memorial trees or send flowers to the family in memory of Gregg Mostaert, please visit our flower store.

Service Schedule

Upcoming Services

Prayer Service

Saturday, February 28, 2026

Starts at 11:30 am (Central time)

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Long Grove Community Center

114 N 1st St, Long Grove, IA 52756

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Celebration of Life

Saturday, February 28, 2026

12:00 - 3:00 pm (Central time)

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Long Grove Community Center

114 N 1st St, Long Grove, IA 52756

Enter your phone number above to have directions sent via text. Standard text messaging rates apply.

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