1. Correspondence box 1 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958
2. 1820-1951, July box 1 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958 » Correspondence
3. 1951, Aug.-1958, undated box 2 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958 » Correspondence
4. Writings box 3 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958
5. Mathematics notes: A-R box 3 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958 » Writings
6. Mathematics notes: S-Z; Lincoln Finds a General: drafts box 4 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958 » Writings
7. Lincoln Finds a General: drafts (cont'd) - notes for vol. I-II box 5 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958 » Writings
8. Lincoln Finds a General: notes for vol. III. - galleys for vol. I-II box 6 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958 » Writings
9. Lincoln Finds a General: galleys for vol. III-V box 7 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958 » Writings
10. Printed items (9 folders); Lincoln Finds a General , Printer's copy in green slip case: vol. I, typescript. box 8 Indiana University » Lilly Library » Collection: LMC 2312: Williams, K.P. mss., 1820-1958 » Writings