Management Bios

Barton O’Brien, Founder

Bart is a reformed Wall Streeter who left his job at a large hedge fund to start his own business. A Pennsylvania native, Bart spent 8 years as a pilot in the Marines, serving 3 combat tours in Iraq and west Africa. After graduate school, Bart spent seven years working in financial markets in both London and New York.

Bart is a graduate of the US Naval Academy and has a masters degree in international relations / economics from the School of Advanced International Studies (SAIS) at Johns Hopkins. He is an avid golfer and enjoys hiking and generally spending time with his best friend Walter.


Molly Harrington, Senior VP and General Manager

Molly is a devoted animal lover who has spent much of her life on the Chesapeake Bay. Prior to BAYDOG, Molly worked in environmental policy on Chesapeake Bay restoration issues. However, her greatest personal passion has been working with animals– especially dogs, so Molly changed careers to work as a veterinary technician, then the Animal Rescue Coordinator at one of the region’s largest open admission animal shelters.

Molly can almost always be found with her sidekick Mulligan, an affable and devoted black lab mix. She and Mulligan are enthusiastic sailors and love to be on the waters of the Chesapeake. They live with Theodore, a Maine Coon mix rescue cat, who is in charge of the whole household.

Molly was an honors graduate from the University of West Florida, majoring in Environmental Science with a concentration in soil physics.


Walter, VP Client Relations

Walter is a white Labrador Retriever who was born on a farm in Georgia. He currently serves as the VP for Client Relations at BAYDOG, as well as the Chief Morale Officer and Manager of the Treats and Chew-Toys Division.

Prior to BAYDOG Walter spent most of his time sleeping, chasing pigeons and wrestling with larger dogs in the park near his home. He earned his BA in Basic Obedience Studies from K9 State University, and has masters degrees in cuteness and fetching. He is an accomplished swimmer, and enjoys bully sticks, belly rubs, and drinking from puddles (bad Walter!).

Mulligan Bowtie

Mulligan, Chief Barketing Officer

Mulligan is a black Labrador Retriever mix who was adopted from a county animal shelter on Maryland’s Eastern Shore. Though he still bears some physical and emotional scars from his prior circumstances, in his second life Mulligan has blossomed into a sweet, amiable character who makes all those around him smile.

He currently acts as BAYDOG’s Chief Barketing Officer, Dog Snuggling Supervisor, and performs quality control checks on treats and balls for BAYDOG treat pouches. With his enthusiasm for fetching sticks, he hopes to someday become Branch Manager.

Outside of work, Mulligan is an active fellow who loves swimming, chasing geese, boat riding, and learning new tricks, but he most especially loves snuggling with Molly and his cat Theodore.