- G. A. Brown Account Book, 1861/18681
- G. A. Williams Letter to Charles Lanman, 18581
- G. Burke Johnston Papers, 1900/199390
- G. C. Bales Tourist Camp Collection, 1945/196013
- G. C. Beard Business Records, 1898/194031
- G. C. Lane certificate, 18771
- G. Carrington Williams papers, 1945/194827
- G. E. Roberts Letter, 18741
- G. G. Davison Receipt Book, 1853/18761
- G. Glenwood Clark Papers, 1916/196799
- G. Grahame Duce Papers, 1920/194712
- G. Gregg Cartoon, 19411
- G. H. Dinges Ledger, 1859/18611
- G. Horace Tarr Letter, 18631
- G. L. Sively Postcard, 18771