["H" Correspondence: H., Irma; H., Tony; Hammond; Hanna, E.H.; Harker, K.; Harmony Hill; Harper, Mr. and Mrs. Earl Enyeart; Harris, Margery and Paul; Hartstall, P.K.; Hassinger, Mrs. Owen E.; Heineberg, Mrs. Alfred; Hensel, Evelyn; Hetherington, L.H.; Hickok, Charles T.; Hines, L.K.; Hively, Helen; Hodges Figgis & Co., Ltd.; Henry Holt & Co., Inc.; Hopkins, R.C.; Hostetler, A.; Hovey, Walter R.; Howard, Betty (see also: Reed, Betty); Howe, Mary; Huber, D.J.; Huck, Rainer; Hunt, Doris & Len; Hussmann, Mrs. Lotte.]