In this chapter we discuss the ways in which work–family researchers can better include underrepresented populations in work–family scholarship. Extant research on five example populations is reviewed: low-income workers; immigrants; lesbian, gay, bisexual, and transgender individuals; single parents; and formerly incarcerated individuals. Methodological challenges are reviewed that contribute to the underrepresentation of such populations in the work–family field. In conclusion, we draw themes common among these populations and present recommendations for expanding work–family research to include more diverse population characteristics.