Administrative Team

Lorilyn Jacobsen Tews

Executive Director
[email protected]

Once upon a time in 2006, over a late-night pizza, Dr. Joan Gill asked Lori to consider a part-time job working with a group of “very fun and friendly hematologists.” More than 15 years later, Lori continues to enjoy both friendship and fun as Executive Director of HTRS. Lori was once a Layton Art Scholar at the University of Wisconsin-Milwaukee, where she earned degrees in fine art and English literature. Her 30-plus years in the nonprofit sector include a decade at the Milwaukee Public Museum, writing grants, designing exhibits, and attempting to stay sunburn and snake-bite free at dig sites in Montana and collecting expeditions in Costa Rica.

When she’s not at HTRS, Lori loves to hunt for antiques, devour books, and hang out with her family, friends, and her rescue pup, Wilson. She dreams of visiting Hobbiton in New Zealand, and wishes she could have spent a day with Abraham Lincoln. She continues to be inspired by the talent and dedication of the fun and friendly physicians, investigators, and allied health professionals who make HTRS such a wonderful organization.

Jennifer Ziegler

Director, Award Programs & Career Development
[email protected]

Jennifer is a writer, photographer, and journalism graduate of the University of Wisconsin-Madison, where she first discovered her passion for writing feature articles that focus on fascinating people, the cultural arts, and travel.  After 10 years living in Lincoln Park in Chicago as a corporate communications professional, she headed west with her husband to explore the skiing, hiking, biking, and local culture in the San Juan Mountains of Colorado.  While winter was the impetus for the move, Telluride summer became the main attraction where weekend festivals feature the Joffrey Ballet, international films, bluegrass bands, hot air balloons, uber-athletes, endless hiking opportunities, and more dogs than you can imagine.  It was like living in a painting.

After a move back to Cedarburg, WI for family and business opportunities, Jennifer is grateful to have chaperoned a high-school choir trip to Washington, D.C., where her daughter was singing with Lori's at the Kennedy Center and her career transition to HTRS began.  On evenings and weekends, she can be found with her three daughters in a close community of friends, looking forward to the next travel adventure in search of mountains and sunshine.

Danielle Horwitz

Meeting Manager, HTRS; contracted through Detailed Event Management
[email protected] or [email protected]

Danielle is a seasoned event manager and consultant dedicated to managing meetings and event services, both in-person and virtual, since 2018 for the Hemostasis and Thrombosis Research Society, Inc. (HTRS).  Danielle is responsible for organizing committee-driven content, building agendas, overseeing all logistics, registration processes, platform development, sponsorship relations, and more for each event. Working directly with the full-time HTRS staff to complete action items and meet/exceed objectives for each program which directly impacts the education offered through the Society benefiting the hemostasis and thrombosis community. Detailed Event Management also contracts to work with a variety of medical and pharmaceutical clients catering to a bevy of needs such as registration staffing, transportation coordinator, virtual moderator, etc.

Living in Philadelphia, PA, with her husband and dog Indiana ("Indy"), they often can be found enjoying the city’s rich culture, vast food scene, and events whenever time and the ongoing pandemic allow. An avid traveler, Danielle is always planning her next great adventure.

Mary Koch

Membership and Communications Manager, HTRS; contracted through NImble Business Services
[email protected] or [email protected]

Mary brings her experience in education, information management, and information technology to HTRS. For more than 20 years, she used her communication skills and problem-solving abilities while working alongside colleagues to achieve organizational goals and impact lives. Highlights of her career include time in the financial services industry, teaching kindergarten and first grade, working as a school librarian, and helping a wide variety of freelance clients with their research and content needs. She's excited to be working with HTRS and hopes to put her talents to use in new ways.

Mary grew up in the city of Milwaukee and still lives in the area. She's an avid reader who has been in the same book club for over 15 years. When she’s not reading or researching her family’s history, you might find her taking a walk on one of the neighborhood trails, heading out to take photographs, or sitting on the beach on a warm summer day.