Board of Directors

Left to right first row: Mary Tonneberger, Doni Lystra, Kathy Bosco, Marcia Biskupski, Joan Kalchik-TenBrock.  Second row: Lynn Sutton, Jim Promo, Dan Ziegeler, Myrn Steele, Roberta Cohen.

Left to right, first row: Mary Tonneberger, Doni Lystra, Kathy Bosco, Marcia Biskupski, Joan Kalchik-TenBrock.
Second row: Lynn Sutton, Jim Promo, Dan Ziegeler, Myrn Steele, Roberta Cohen


Executive Officers:
President: Dan Ziegeler
Vice President: Kathy Bosco
Secretary: Doni Lystra
Treasurer: Myrn Steele

Roberta Cohen
Bob Jacobson
Jim Promo
Lynn Sutton
Mary Tonneberger


Advisor: Joan Kalchik-Tenbrock

Marcia Biskupski
Michael Biskupski
Jim Centner
Clay Coste

Founding Members:
Marcia Biskupski
Michael Biskupski
Kathy Bosco
Jim Centner
Clay Coste
William McMenamy
Christopher Verdery

In Memory Of:
Austin Jones
Daniel Schleef


Kathy Bosco: Kathy founded an educational group for grandparents who have grandchildren with autism 18 years ago. The group, located in Phoenix, AZ, has reached over 700 grandparents attending monthly meetings. She also works closely with her Alma Mater, Michigan State University, in the Education Department on the study of Autism.

Roberta Cohen: Roberta and her husband Allan, became full-time seasonal residents in Omena in 2012. Originally from New York, where she was an elementary school teacher, she and Allan moved to St. Louis, MO, in 1980. She served on the Board of numerous charitable organizations, including the Saint Louis Crisis Nursery, Paraquad, Anti-Defamation League, A World of Difference Institute, National Council of Jewish Women, Barnes-Jewish Hospital Auxiliary, Saint Louis Symphony Volunteer Association, and the Jewish Family & Children’s Service. Through her volunteer efforts she helped to raise over $20 million for St. Louis charities and increased the community’s awareness of such critical issues as: child abuse and neglect; the need for independent living for people with disabilities; AIDS & HIV issues; other significant medical and health issues, including breast cancer; the dangers of bias and prejudice; along with focusing on the importance of music, art, film, and literature in our lives. In 2015, Roberta co-chaired the Omena Women’s Club 100th Anniversary Celebration. Roberta has a son and a daughter and four delightful grandchildren.

Bob Jacobson: Bob has been a life-time seasonal resident of Leelanau Township. In 1969 his family bought a cherry farm and summer home in Northport. In the early 70s, they planted grapes for wine and by 1978, they were producing wine as Leelanau Wine Cellars, Ltd. Bob has been president of the winery for over ten years and employed full-time since graduating from the University of Michigan in 1993. Leelanau Wine Cellars is the largest winery in Michigan, producing and selling almost 200,000 cases of wine annually. When not at LWC, Bob develops, builds, and operates affordable rental housing around the State of Michigan. His company has over 1,500 apartments that rent to individuals earning below 60% of the area’s median income. In addition, he serves as the Treasurer of the Michigan Wine Producers Association and is a Director of the Shelter America Association, a Seattle-based affordable-housing nonprofit focused on building and preserving affordable housing with ownership of over 2,000 rental units.

Joan Kalchik-TenBrock: Joan has lived in Northport and Omena all her life except for the three years she spent in New York City and Tennessee. She is fifth generation of the Middleton family. Joan’s anchors are two businesses, Kal Excavating Company, with a partner, and Ahgosatown Marina, RV, and Storage, with her husband, Mike TenBrock. Through the years she has served on many boards and nonprofit organizations; most recent are OVPA, Omena Club 21, Northport Performing Art Center, and Leelanau Township Community Foundation. Joan likes working with others and seeing many wonderful things happen to benefit residents and enhance communities.

Doni Lystra: Doni has owned a summer home in Omena since 1991. She has been visiting Leelanau County since the early 80’s, sailing out of Suttons Bay. She was the President and CEO of Food Ventures, Inc. and owned a number of European-style bakeries/coffeehouses in Ann Arbor for 20 years. She currently serves on the Board of the Omena Women’s Club and the OVPA, the National Society of Arts & Letters, and on the NSAL Board of Trustees. Past Board service includes the Omena Historical Society, U of M Lucile B. Conger Alumnae Group, Junior League of Ann Arbor, U of M Musical Society Advisory Board, U of M Henderson House Cooperative Residence, Ann Arbor Art Association (now Art Center), and the Young People’s Theater. Doni has a son and a daughter and one very special grandson. Doni and husband, Don, live part of the year in Ann Arbor.

Jim Promo: Jim has managed Four-Diamond hotels and resorts throughout the U.S., always located in places of great natural beauty. Whether living in the Virgin Islands, Vermont, Hilton Head Island, Jackson Hole, Vail, or Lake Tahoe, Jim has enjoyed camping and particularly kayaking the beautiful lakes that are part of the pristine wilderness areas of the country. He learned at an early age the value of outdoor recreation, which allows for the re-creation of the human spirit. He has served on the Board of the Woodstock, VT Chamber of Commerce, and later on the Wyoming State Travel and Tourism Board of Directors. Jim and his wife Ann moved back to his home state of Michigan in 2017, and since then has become a member of the OVPA Board and now serves as Co-Grounds Chairperson of the Omena Traverse Yacht Club.

Myrn Steele: Myrn grew up in Northport. After receiving a Bachelor’s degree in business from Ferris State College, he has had a 42-year career wth General Motors. He held seven different positions and moved thirteen times, including nine years in Spain and Portugal where he was strategic in building and running a GM plant in both countries. Myrn retired from GM in 1996 after serving as a plant manager of the Livonia Trim plant. Following retirement he returned to live in Omena and has been very involved with the Suttons Bay Congregational Church and in recent years, OVPA. Myrn and his wife Nonie own a cottage care company, managing the homes of people Nonie grew up with on Ingalls Bay. They winter in New Smyrna Beach, Florida.

Lynn Sutton: Lynn has been a cottage owner since 1977 when she restored and moved the Barth Barn, converting it to a cottage. A fiber artist, she is a long-time contributor to the Tamarack Gallery. In the past, galleries in Maui, California, New York, and Chicago have carried her fiber sculpture. Lynn is also a musician having played viola as a member of symphony orchestras in Chicago, Ann Arbor, Traverse City, and Lansing. Lynn has two sons and six grandchildren who she is devoted to. When not in Omena, Lynn and her husband Ron, live in Pinckney, MI.

Mary Tonneberger: Mary has been a visitor, cottage renter, and permanent resident of Omena since 1968. She has been married to Ron for sixty years; they have two children and four grandchildren. Mary is a retired marketing research executive. She currently serves on the Boards of the Omena Woods Association, Omena Women’s Club, OVPA, Traverse City Economics Club, and the Leelanau Early Childhood Development Commission. Past Board service includes the Leelanau County Board of Commissions, Benzie-Leelanau Board of Health, ShareCare, Suttons Bay-Leelanau County Rotary, Area Agency on Aging, Omena Historical Society, Omena Traverse Yacht Club, League of Women Voters, and the Leelanau Township. In her “free time,” she enjoys family, travel, golf, and kayaking.

Dan Ziegeler: Dan, along with his wife, Mary, is the proprietor of the Sunset Lodge in Omena. Prior to purchasing the Sunset Lodge, he was a management consultant for over 30 years, retiring after a 26-year career with Deloitte Consulting. Dan and Mary relocated to Omena from Ann Arbor where they raised their three children. Their oldest, Claire, is currently an attorney in Detroit; son Dan resides and works in the Twin cities; and their youngest, Charlie, is a student in the Culinary Arts program at Washtenaw Community College, and is living and working in the Ann Arbor area.