Herb was the loyal, portly camera man of Carl Denham. He accompanies Carl and his film crew onto the island twice - once into the native's village (where they are captured and later rescued by Captain Englehorn) and again when several of the men set out to rescue Ann Darrow.
When the men pause for a quick break, he, Carl and Bruce Baxter go off a little way down the valley, and encounter a herd of Apatosaurus grazing. Carl begins to film them. However, some Venatosaurus arrive in a hunting pack and frighten the Apatosaurus, causing them to stampede down the valley towards Baxter, Carl and Herb. Baxter quickly loses his nerve and flees. However, despite the dangers, Herb stoically remains with Denham until the last possible minute, filming the dinosaurs.
Soon they, along with the rest of the men, have to flee down the narrow valley away from the stampeding herd and the Venetosaurs chasing them. Despite being plodding and slow-moving, Herb manages to successfully survive the stampede by running with the rest of the men, surprisingly managing to keep up and avoid being trampled.
The stampede ended after Baxter shot the Venatosaur chasing him in a hail of bullets, and unintentionally struck one of the Apatosaurus' with several bullets, causing it to trip and cause the others to fall into a heap. The men are forced to climb up a steep embankment to escape. Herb is at the rear of the climbing men and struggles to climb, subsequently getting stuck against the rock face and calling for help from Carl.
Carl tries to help him by getting him to hold onto his end of the camera tripod and pull him up, but Herb realises it won't work and says "You have to leave me!", despite Denhams vow that he will not leave without Herb. Herb is subsequently dragged back down the slope by a Venatosaur, and is killed and eaten by the pack. Carl is visibly distressed by the loss of his loyal assistant and decided to finish his film for Herb and donate the proceeds to his wife and children