Visiting Student Awards are available for currently enrolled graduate students. You need to be Available full-time (40 hours per week) for ten weeks during the summer, fall, or spring.
Stipend: $600 per week, a small research allowance and with possible travel allowance.
(I thought you might spin your research for your book for this)
https://www.smithsonianofi.com/internship-opportunities/minority-awards-program/