Engineers participate in the Maker movement. Some Makers do not pursue formal engineering education but both the engineering field and their own vocational advancement could readily benefit. We seek to understand Makers and how they are inclusive or exclusive of what can be expected from engineers. From the Engineer of 2020 list of characteristics (National Academy of Engineering, 2004), we highlight practical ingenuity, creativity and lifelong learning for likely opportunities to leverage the Maker experience. The mission of this research is to develop a theory, inductively grounded in data and deductively built on literature, illuminating the knowledge, skills, and attitudes of Makers, describing their pathways in formal engineering education to better inform future innovations in order to improve the practical ingenuity and lifelong learning of our future engineers. Artifact elicitation interviews, based on the method of photo elicitation and critical incident technique interviews will be administered to participants. Results from the inductive and deductive analyses will be triangulated to generate a preliminary theory of Maker knowledge, skills, attitudes, and pathways. This theory, inductively grounded in data and deductively connected to literature, will describe aspects of Makers, along with how their pathways intersect with formal engineering education experiences.