This collection consists of records relating to the long career of Charles Donahoe as an industrial engineer and blueprint reading instructor at Lufkin Foundry and Machine Company during the mid to late 20th century. These records were kept by Mr. Donahoe and give insight to some of the day-to-day workings of the company. Records include reports on machine functioning, gear plans and blueprints, memos, and various publications related to equipment manufactured or used by Lufkin Foundry and Machine Company.