Talk to a Nurse 1-866-603-MMCT (Monday - Friday, 9am - 7pm ET)

Teams and Walkers

Select A Team:


In Honor of

Created by Samantha Rayburn

John Barrow Rayburn

Help us honor our loved one while making a difference in myeloma research.

The Multiple Myeloma Research Foundation (MMRF), along with its research and medical industry partners, has fueled more studies, initiated more trials, developed more treatments, introduced more medicines, and have had a far greater impact than any other organization on myeloma. While the MMRF has made enormous progress, they still have much to do and cannot continue to do great research without your support.

Please consider joining me to fight multiple myeloma. Together we can make a difference.

About the MMRF:
The mission of the Multiple Myeloma Research Foundation (MMRF) is to find a cure for multiple myeloma by relentlessly pursuing innovation that accelerates the development of next-generation treatments to extend the lives of patients. Founded in 1998 by Kathy Giusti, a multiple myeloma patient, and her twin sister Karen Andrews as a 501(c) (3) nonprofit organization, the MMRF is a world-recognized leader in cancer research. Together with its partners, the MMRF has created the only end-to-end solution in precision medicine and the single largest genomic dataset in all cancers. The MMRF continues to disrupt the industry today, as a pioneer and leader at the helm of new research efforts. Since its inception, the organization has raised over $400 million and directs nearly 90% of the total funds to research and related programs. To learn more, visit

Matching Gifts
Did you know you can double your impact in seconds? Many employers sponsor matching gift programs and will match charitable contributions made by their employees.  Find out if your employer offers this benefit! Visit the MMRF Matching Gifts website ( or ask your Human Resources Department!

Guest Book



1. Capitol One Services
2. Stephen Gannon
3. James Barrett
4. Rodge Cohen
5. Walker and Marjorie Rayburn
6. Diana Ahlers
7. Philip Li
John was an amazing coworker. Articulate, intelligent, and most important of all, he was always friendly and genuine.
8. Laura Wentz
9. Warrenetta Baker
10. Tom Derr & Family
You are greatly missed John. Rest in Peace friend.
11. Nathan Krishnamurthy
John was one of the most authentic, friendly, and curious people I've come to know professionally. Through our time together at work I came to know John as a close colleague and friend; but his passing came as a surprise - a true loss. For those who knew him more personally, I can only imagine the impact he had on your lives.
12. Joshua Krutoy
13. Anonymous
14. David and Emily Roberts Family
John, You are a great example of a dedicated husband, father, and friend. Love the Roberts family.
15. Anonymous
With sympathy, from a friend at Capital One
16. Staff at Rising Sun Construction
We are so sorry for your loss
17. Sharon Johnson
John was an amazing colleague and person and will be tremendously missed by so many people. His fight with Multiple Myeloma was inspirational and I make this contribution in his honor.
18. Ed and Sue Rayburn
With love forever for a wonderful son. You fought a good fight, and set a fine example by the life you lived.
19. Adam Hatchl
Words cannot express how sorry for are for your loss. Love, The Hatchl Family
20. Henrique Canarim
My condolences to John's family. He was truly a wonderful colleague and friend and will be missed.
21. Dave & Nikki Merrill
In honor of our friend John, a wonderful and admirable husband, father, and good man who put up a good fight and brought a lot of good to the world! Thank you!
22. Elijah and Rachel Alper
23. Andrew Shatokhin
24. Anonymous
Our deepest condolences for your loss. Sincerely, The Leidos AFATDS Team in Abingdon, MD (employer of Jim Rayburn, John's brother)
25. Christine Van Horn
26. Andy Navarrete and the entire EA team
In loving memory of John Rayburn. Forever in our hearts!
27. Sonya Marsden
Elsa and I are sending you love! We hope you will be able to find some joy in your wonderful memories during this painful time. We are here for you always.
28. Kara West
In honor of John Rayburn. A wonderful friend and valued colleague.
29. Erik Christensen
John Rayburn was an excellent attorney, a loving husband and father, a great officemate at S&C to me and a wise soul. He will be missed. My most sincere condolences to his family.
30. Robyn Reynolds
It has been a pleasure knowing John and being in the same ward/building with him and the rest of the Rayburn family. My prayers are with his family.
31. Steven Willinger
for John
John was a professional colleague who helped explain and strategize around complicated legal topics concerning capital and liquidity. I will miss his enthusiasm, teamwork, and intellect. My deepest sympathies go out to John’s family and friends.
33. Marisa Gomez
John was a great colleague and person. He will be greatly missed. His fight was inspirational and I am happy to support the fight for multiple myeloma. Thanks John for being you and being here, you touched many and made a difference!
34. Kim Sutton
35. Don and Sharon VanGilder
36. Cindy Rayburn Linton and Family
Dear Sam and Family, Eric and I are so sorry for your loss. John was a great man, and I'm sure he is resting and smiling in Heaven. Love, Cindy, Eric, and Aiden Linton
37. Daniel Meade
38. John Echeverria
39. Candace Davis
Praying for your family during this very difficult time. John will be terribly missed by me and so many others.
40. Sean Flanagan
41. Francine Tuck
42. John Stern
I got to know John through various times in the banking industry. He was kind, thoughtful and steadfast. I will miss him and I would like to share my condolences with the Rayburn family. May God bless John and his family.
43. Anonymous
John was a gift to everyone he encountered. His intellect shone out of him, but it is his generous spirit and everpresent kindness that I will remember. My deep condolences to the extraordinary family that he and Samantha have built.
44. Robson Bassett
My condolences to the Rayburns, extended family, and friends.
45. Kyle Roche
A great soul serves everyone all the time. A great soul never dies. It brings us together again and again” - Maya Angelou John is a great soul. I’m so sorry for your loss.
46. Daniel Ferguson
47. Erin Weber
48. Vanessa Tran
49. Alison, Audrey and Matthew Crane
It was clear from the first time we met him that John was a kind and generous soul. He will be sorely missed by many. We are heartbroken for his family to suffer such a loss. We love you, Rayburns.
50. Becky and John Frank and family
Our thoughts and prayers are with you all. Sending our love.
51. Roger Lambert
John was, without a doubt, one of the most intelligent and insightful people I have ever met. He was a gentleman and a scholar.
52. Christopher Peak
53. Stacey Greenberg
I am deeply saddened to hear about John’s passing. Thinking of Samantha and their beautiful family.
54. Lesley, Eyal, Aviva and Eitan Fierst
Sending deepest condolences to the Rayburn family for this enormous loss.
55. Jim and Kate McFarlane
56. Robin Rotman
John was a man of great courage. I am honored to have worked with him at Sullivan & Cromwell. He was a couple years senior to me at the firm, and was always willing to provide support and mentorship. Even in the final days of his life, he continued to share his wisdom with others, with humor and grace. I will miss him greatly.
57. Jeff Bloch
John was a great colleague and a wonderful person. He will be missed.
58. Kieran Fallon
We will miss the intellect, spirit and goodwill that John brought to all of his interactions, both professional and personal. Kieran Fallon Senior Deputy General Counsel PNC Bank
59. Lori Cunningham
60. Suki Dewey-White
I hope this will help find a treatment/cure, so no other family has to deal with the loss of a loved one.
61. James Steiner-Dillon
62. Nicole Sbitani
We love and miss you, John. Peace be with your family. D&C 42:46
63. Joshua, Debbie, Hendrix, & Walle Hess
We love & miss you dearly, John.
64. Lindsay Petrosky
In the hope that there will be a cure and no more will suffer. I lost my grandmother to this disease 23 years ago. Prayers for peace to this special family.
65. Geraldine Varner
Condolences from Buck and Geraldine Varner.
66. Louise Amrine
Thank you for doing this Samantha. John was a wonderful man.
67. Jean Underwood