More Ways to Contribute
Please write “Miles of Hope” in the memo when donating via check, PayPal, or Venmo.
CHECKS
To make a tax-deductible contribution, please mail checks to our address below:
The Osteosarcoma Institute
3963 Maple Avenue, Suite 390
Dallas, TX 75219
PAYPAL
To make a tax-deductible contribution via Paypal, please click the button below:
VENMO
If prompted, the last four digits of the OSI’s phone number associated with our Venmo account @Osteosarcoma-Institute are 7927.
Miles’ Story
Miles was a fun-loving, risk-taking, deeply thoughtful young man—someone with maturity and wisdom far beyond his years. Most of all, Miles was a cherished son, brother, and friend. Miles was diagnosed with osteosarcoma at the age of 12, in 2018. Over the next five years, he endured multiple chemotherapy protocols and surgeries, but the disease continued to spread.
Despite five years of intense treatment, including chemotherapy, clinical trials and multiple surgeries, Miles’ resilience and hope never wavered. Sadly, Miles passed due to osteosarcoma on June 25, 2023 — but his legacy lives on through focused efforts to find better treatments and ultimately a cure.
The Miles of Hope Fund was established in 2022 by David and Ingrid Hartz to honor Miles’ memory and empower science that can change outcomes for future patients. Miles’ story reminds us that every child and family deserves access to more effective therapies — and that compassion must be matched by action.
Miles fought bravely fought osteosarcoma for five years. It is not our turn to fight for him and other children.
Founding Members
Giving levels reflect cumulative gifts made to the Miles of Hope Fund since its establishment in 2022. Recognition lists reflect gifts received through December 31, 2025. If you would like to update your recognition listing or prefer to remain anonymous, please contact us at giving@osinst.org.
Gold Members ($10,000+)
Andy Ellis and Amanda Austin-Ellis
Tom and Pam Harris
David and Ingrid Hartz
Richard and Beth Houston
Patsy and Willis Johnson
The Matt and Kay Kiker Family Fund
KO Supply
Mr. and Mrs. Nelson Rusche Foundation
Barbara and Corbin Robertson, Jr.
Kim Rogers
Richard Scalzitti
Stratford High School
Turn It Gold
Silver Members ($5,000-$9,999)
Gary Chapman and Charlotte Green-Chapman
Richard Duffin
David Hammer and Jennifer Hammer
Sharon and Michael Hartz
Victoria and Parker Johnson
Dr. Mark Khorsandi
Kosmos Energy
Shawn and Maritza Lafferty
Kevin Maley
Origin Bank
Amy and Tony Pannagl, Jr.
Brandi and Don Paullo
Elizabeth and Scott Shackouls
Megan and Dan Tigue
World Oilman’s Tennis Tournament
Tom Young
In-Kind Members
Bedrocks
Milan & Greene Whiskey
Raising Cane’s
Serca Wines
Speedsportz Racing Park
Tito’s Handmade Vodka
Bronze Members ($2,500-$4,999)
Mark and Susan Babineck
Bluestem Equity
Melissa and David Burke
Callon Petroleum Company
Champion Advisors LLC
Expand Energy Corporation
Todd Fisk
Robert Frandsen
Nancy and Richard Golden
Hand Surgery Specialists of Texas
Jamie and Bobby Hillin, Jr.
Houston Livestock Show and Rodeo
Andy Huggins
IS&T
JAME Consulting
KartCRG USA
Jeff and Sarah Laird
Amy Lombard
David and Kyle Lueders
Marubeni Oil & Gas (USA)
Patrick McWilliams
Morgan Stanley Private Wealth Management
Lance and Holly Mosby
Agatha and Bryan Pannagl
Nick Potter
Deidre Shearer
Stephan Solymosy
Southwestern Energy
Derek and Martha St. John
Mark and Mindy Stephenson
The Sandy and Bill Swenson Family Fund
Texegy Royalty
Thomas Tucker
Wilchester Men’s Club
Ben Williams
Mike and Sonia Woodfall
ZO SKIN Centre
Peter and Eileen Zwart
A Message from the Hartz Family
From the bottom of our hearts, thank you. Thank you for honoring Miles and for standing with every child and family facing osteosarcoma. Your support is turning compassion into action and driving progress that patients urgently need.
Our mission is to cure osteosarcoma. The purpose behind that mission is deeply personal to us. It began with Miles, and it continues for every person who has faced osteosarcoma with courage and strength.
We have included a few signs we have used this year to honor Miles and other osteosarcoma patients, and to remember our shared purpose.
“Miles is my gem, and I would do anything for him. That’s why it is so important to us as a family to support the OSI as it pushes for better treatment options and a cure.”
David Hartz, Miles’s dad
Why Your Support Matters
There have been no new approved treatments for osteosarcoma in nearly 40 years.
Patients today are still treated with the same options used decades ago.
Osteosarcoma is rare—but devastating.
Only about 1,000 people in the U.S. are diagnosed each year, mostly children, teens, and young adults—making it severely underfunded.
When osteosarcoma spreads, survival drops dramatically.
Survival falls from roughly 75% to about 25% once the disease metastasizes, most often to the lungs.
Pediatric cancers receive a fraction of research funding.
Only about 4% of federal cancer research funding goes to pediatric cancers.
Private funding is essential to make progress.
Without family-driven and community-driven support, many of the most promising osteosarcoma research efforts simply would not happen.
Our Partners
Our Strategy
Globally estimated, there are over 26,000 new cases of osteosarcoma diagnosed each year, with 1,000 being diagnosed in the US, but treatment options haven’t advanced in 40 years. To find a cure for osteosarcoma, we have to collaborate, innovate, and translate around the most promising science.
Our Mission
The Osteosarcoma Institute’s mission is to dramatically increase treatment options and survival rates in osteosarcoma patients through identifying and funding the most promising and breakthrough osteosarcoma clinical trials and science.