Individual correspondence is the larger of the two subseries in this sereis and covers her letters with almost 500 people. Inglis carried on very extensive correspondence (more than 10 folders) with Mary and Jo Bendler, Johanna Clevens, Alice Greystone (Baker) Furst, Emma Goldman, and Bertha F. Johnson. She also traded letters extensively with several others, including Helen Tufts Bailie, Ewing C. Baskette, John Beffel, Ralph Chaplin, Henry Cohen, Cassius and Sadie Cook, Sidney Glazer, Martin Gudell, Joseph Ishill, Leon Kramer, Laurance Labadie, Max Metzkow, Carl Nold, Thomas Auraldo Riley, Mark Rosenberg, Joseph Slight, Oscar Swede, and Pearl Johnson Tucker. A partial list of other notable individuals Inglis wrote to and received letters from includes Roger Baldwin, Alexander Berkman, Henry David, Elizabeth Gurley Flynn, Marcus Graham, Hippolyte Havel, Big Bill Haywood, Karl Heinzen, Joseph Labadie, Ben Reitman, Lincoln Steffens, Wallace Stegner, Benjamin Tucker, and Victor Yarros.