About Us

Our Leadership Team

David Littlehale, Owner and President

DAVID LITTLEHALE, Owner and President

David Littlehale joined TSR in the fall of 2020 as Director of Sales and Marketing and has spent his entire professional life in sales and sales management while building an exceptional record of success in educational publishing and Ed Tech. After 15 years as VP/NSM for McGraw-Hill/Irwin he spent the last decade as VP, Business Development for EdTech innovators Flat World Knowledge and Link-Systems International. In September 2022, David purchased TSR from its founder and his colleague and dear friend of many years, Bob McLaughlin.

Barb Doherty, General Manager

BARB DOHERTY, General Manager

Barb is a Chicago native with a marketing degree from the University of Illinois. Before joining TSR in January, 2006 as a sales rep, she was an outside sales representative for Deluxe Check Printers and Snelling Staffing. Barb worked as a Tributary project manager for six years before becoming Sales Manager in 2014, then General Manager in July, 2020.

John Domyancic, Business Manager

JOHN DOMYANCIC, Business Manager

John joined TSR in early 2020 after a successful 20-year career at Accenture as a Business Analyst in the Chicago office. Prior to that, John had a successful 20-year career as a Controller at Continental Can.

Jeanne Petersen, Senior Project Manager

JEANNE PETERSEN, Senior Project Manager

Jeanne joined Tributary in 2005 as a Sales Rep. She became a Project Manager in 2013 and was promoted to Senior Project Manager in 2020. Previously Jeanne worked in the packaging industry in the areas of Sales, Accounting, and Administration.

Bob McLaughlin, Founder

BOB MCLAUGHLIN, Founder (1952-2023)

Tributary Sales Resources was launched by publishing industry veteran Bob McLaughlin in January 2002, after a successful 23-year career as a senior sales executive with textbook publishers McGraw Hill, South-Western, WH Freeman, and the Times Mirror Companies. Read more…


The quality and professionalism of our sales team allows us to take on our clients’ most challenging projects, especially those that require proven problem-solvers and professional communicators. Our highly trained, experienced reps truly connect with our clients and their customers, driving new revenue opportunities and the collection of accurate customer data, as well as valuable product and market intelligence for our clients.

  • TSR reps hail from a wide variety of challenging and professional work experiences prior to joining our team. They are excellent communicators, extremely organized, and appropriately assertive. And they all have college degrees.
  • TSR reps are specialized by project and client. There are clear advantages to our clients when TSR reps stay with a client over the life of the project. Several TSR reps have multiple-year engagements with one client.
  • Our flexible work schedule provides us access to uniquely talented candidates who are attracted to TSR’s family-friendly and professional work environment.
  • TSR reps enjoy the work at TSR and they STAY. The average rep tenure at TSR more than 4 years. TSR currently employs more than 35 reps for most of the year.
  • TSR reps have always benefited (in non-pandemic times!) from working together in Naperville, taking advantage of the opportunity to provide training and on-boarding to new reps while working with experienced colleagues and Project Leaders on systems and work processes. As with so many businesses we’ve adapted to the pandemic and remote work in a variety of ways while keeping the focus on collaboration, mentoring and teamwork, along with a commitment to a unique culture and work environment that helps TSR retain dedicated, qualified professionals on our team.