abstract: In this study, I used critical, qualitative methods to explore how the material and symbolic dynamics of milk banking complicate expectations of organizing and (in)effective lactation. Guided by theories of alternative organizing, in/voluntary membership, the structuration of d/Discourse, and corporeal commodification, I conducted document analysis, fieldwork, and interviews with hospital and milk bank staff and maternal donors and recipients. Results trace the (her)story and protocols of the milk banking industry and examine the circumstances of donation and receipt; the d/Discourses of filth, suspicion, and inadequacy that circulate the lactating, maternal body; and the presence or resistance of commodification within each organization. Milk banking occurs when mothers provide excess breastmilk to parents with low supply or compromising medical conditions. “Milk banking” is used as an umbrella term for different ways of organizing donor milk; organizing evolved from wet-nursing to a continuum of in/formal markets. Formal markets include for-profit and non-profit milk banks that pasteurize and/or sterilize breastmilk for Neonatal Intensive Care Units. Informal markets involve self-organized exchanges online that are driven by monetary ads or donation. Both formal and informal markets elicit questions regarding flows of capital, labor, reproductive choice, and exploitation. However, current research resides in medicine, law, and popular press, so we know little about how milk banking happens in real time or how participation affects maternal identity. My analysis makes four contributions to organizational communication theory: (1) alternative organizing punctuates the construction of and conflicts between in/formal markets and shows why such theories should be represented as cyclical, rather than linear; (2) membership in milk banking is unintentional and distinct from in/voluntary membership; (3) the obscured organization is a necessary alternative to Scott’s (2013) hidden organizations; and (4) d/Discourses of “safety” are used to discipline and indict, not just represent operational differences. Social-rhetorical implications reveal how milk banking operates as an affective economy (Ahmed, 2004) and mark where privileges and inequalities are present in the absence of data; practical implications suggest consideration of policy changes. Methodologically, this study also offers insight into crystallization (Ellingson, 2009) and participant witnessing (Tracy, forthcoming) and challenges the hegemonic underpinnings of fieldwork. / Dissertation/Thesis / Doctoral Dissertation Communication Studies 2019