The prevalence of digital collections, and even larger-scale digital libraries, has increased over time. Constructing a successful digital collection ultimately requires attention to factors like purpose, audience, chosen materials, metadata, user services, and sustainability during preliminary planning, implementation, and subsequent collection maintenance. This presentation illustrates the creation process of Knitting With a Purpose: 20th Century Wartime Knitting, a digital collection made using CONTENTdm. This collection features thirty-one items depicting historically significant knitting-related charity work chosen from the Library of Congress Prints & Photographs Online Catalog (PPOC). This presentation details important considerations during the planning and execution of this small-scale digital collection built from resources within the public domain. This presentation is based on a digital collection project completed during the Summer 2020 semester for LSC612 Foundations of Digital Libraries, a course offered by the Department of Library and Information Science at The Catholic University of America.