We are a KlM-GNA registered breeder of Kleine Munsterlander in York County, Pennsylvania. 
26/03/2025
We adore Mary, and of course handsome Tänzer (Arec vd Wildblumen). She contributes tremendously to conservation and we are very lucky to call her a friend!
THE HEART OF THE FOREST: LHR'S Extraordinary Volunteers
Mary Hosmer: A Steward of the Land and a Champion for Wildlife
Some people see the forest as a place of quiet beauty, a retreat from the rush of everyday life. Others, like Mary Hosmer, see it as something more—a living, evolving landscape that requires care, advocacy, and action. For Mary, volunteering isn’t just about lending a hand; it’s about leaving a lasting impact on the forests, wildlife, and hunting traditions she holds dear.
Mary’s love for the outdoors was instilled in her from a young age by her father, who introduced her to nature, hunting, and conservation. Through their time together in the woods, she developed a deep appreciation for the land and the importance of
responsible stewardship. This early influence shaped her lifelong passion for conservation, hunting, and volunteerism.
Raised with a deep respect for the natural world, Mary’s journey into conservation and volunteer work was shaped by her passion for upland bird hunting. The thrill of working with bird dogs and pursuing grouse and woodcock across Pennsylvania’s rugged terrain became more than just a pastime—it became a calling. This passion led her to organizations such as the Ruffed Grouse Society (RGS) and the Upland Bird Hunt (UBH) Chapter, where she works to promote habitat conservation for these iconic
game birds.
One of Mary’s most significant contributions was helping to bring the Upland Bird Hunt to the PA Wilds. Recognizing the region’s potential as a premier destination for bird hunters, she played a key role in establishing this event, which not only celebrates
the sport but also highlights the importance of habitat restoration and sustainable forestry. Thanks to her efforts, the PA Wilds has become a hub for upland hunters who appreciate both the tradition and the conservation efforts that make it possible.
But Mary’s impact doesn’t stop there. She is also a driving force at the Rolfe Beagle Club, a testament to how Pennsylvania’s hunting culture has evolved over generations. Decades ago, as soldiers returned home from war, beagle ownership soared, and the state boasted more than 400 beagle clubs. Over time, as forests matured and small-game populations declined, beagle ownership dwindled, and many of these clubs disappeared. Recognizing this shift, the Rolfe Beagle Club adapted, transitioning to focus on bird dogs. Today, it stands as a premier training ground for sportsmen and women dedicated to upland hunting.
Mary’s knowledge extends beyond hunting—she understands the science behind a thriving forest. She is an active participant in the Roach-Bauer Forestry Forum (RBFF), an organization committed to educating landowners, foresters, and conservationists on sustainable forest management. With over 70% of Pennsylvania’s
forests privately owned, she recognizes the importance of managing land with intention. The absence of young forest growth, due to an overabundance of aging trees, poses a
threat to wildlife populations. Through RBFF, she helps advocate for strategic timber harvests that create the diverse age-class mosaics needed for a balanced ecosystem.
Her dedication to sustainable forestry is reflected in where she chooses to hunt. Mary primarily hunts on Private Industrial Timber Lands (PITL), including properties managed by LandVest and Collins Pine, as well as in the Allegheny National Forest. These lands, carefully managed through sustainable forestry practices, provide critical habitat for a variety of wildlife species. But as Mary explains, forest management alone isn’t enough—wildlife conservation requires a multi-faceted approach.
This understanding naturally connects to her involvement with the Kinzua Quality Deer Cooperative (KQDC), an initiative that focuses on balancing deer populations with habitat conditions. Over-browsing by deer can devastate young forest growth, making it
difficult for small game to thrive. KQDC works to maintain a healthy deer population in harmony with forest regeneration efforts. As Mary shares key findings from KQDC’s 20-year study, she mphasizes the need for science-based management strategies that
benefit both hunters and conservationists.
Beyond her hands-on conservation efforts, Mary also uses her love for writing to advance the cause. For the past five years, the Lumber Heritage Region (LHR) has been receiving Mary’s press releases, highlighting conservation initiatives, habitat restoration efforts, and the importance of sustainable forestry. Her ability to craft compelling narratives has helped shine a spotlight on the work being done in Pennsylvania’s forests, ensuring that these critical issues reach a broader audience. Through her writing, Mary not only educates but also inspires others to take an active role in conservation.
When asked where she would invest a “zillion dollars” to make the greatest impact, Mary’s answer was clear: the Center for Private Forests. With so much of Pennsylvania’s land in private hands, empowering landowners with the knowledge and tools to practice sustainable forestry could transform the state’s landscape for
generations to come.
At the heart of Mary’s work is a deep-rooted belief in stewardship. She understands that a thriving forest doesn’t happen by chance—it requires dedicated management, education, and a commitment to the future. Through her volunteerism, she has become a voice for conservation, a mentor to fellow hunters, and an advocate for preserving Pennsylvania’s rich outdoor heritage.
In a world where forests are often taken for granted, Mary Hosmer stands as a reminder that the land needs champions—people willing to put in the work to ensure that future generations can experience the same joys she has known. Whether she’s training bird dogs, educating landowners, promoting sustainable hunting practices, or writing about conservation, Mary’s impact is woven into the very fabric of Pennsylvania’s wilderness.
Her story is one of passion, adaptation, and dedication—a story that exemplifies the true spirit of the Lumber Heritage Region and the volunteers who keep its legacy alive.
