The impressive Harry Ransom Humanities Research Center (HRHRC) at the University of Texas at Austin holds the Alfred A. Knopf Inc Records, 1873-1996. (You may remember from an earlier posting that the HRHRC also holds Anne Sexton's papers.)
Knopf published The Colossus and other poems in 1962, so when it came time for Plath to try to get The Bell Jar published in the United States, she sent the manuscript along to Knopf. Knopf rejected it, unfortunately.
In "Series I. General / Historical Correspondence, 1922-71, bulk 1946-66", they hold in box 362, folder 2, correspondence with Plath from 1961-1962, approximately the time period for both the publication of The Colossus, as well as her attempt to secure them as publisher for her novel. The collection does hold their rejection letter to Plath.
In "Series VII. Other Department Files, 1916-96, bulk 1943-68, A. Publicity Department, 1916-96, bulk 1943-96, 1. Publicity Files, 1916-67, bulk 1943-58", they hold in box 1253, folders 17 and 18 "Plath, Sylvia - THE COLOSSUS, Bio., 1961-62" and "Perm., 1961".
In "Series VI. Editorial Department Files, 1930-84, bulk 1948-78, D. Reject Files, 1933-68, bulk 1953-68", they hold in box 1093, folder 4, "Plath, Sylvia, 1961-65".
Additionally, the index to the collection lists that materials relating to Sylvia Plath can be found in the following boxes and folders: 113.1 (Correspondence 1952) , 328.5 (Correspondence 1961), 472.1 (Correspondence 1966), 489.4 (Correspondence 1967), and 962.1 (Series VI. Editorial Department Files, 1930-84, bulk 1948-78, Subseries C. Manuscript Records, 1930-79, bulk 1941-68, boxes 957-963). To understand the listings, 113.1 means box 113, folder 1.
Knopf published The Colossus and other poems in 1962, so when it came time for Plath to try to get The Bell Jar published in the United States, she sent the manuscript along to Knopf. Knopf rejected it, unfortunately.
In "Series I. General / Historical Correspondence, 1922-71, bulk 1946-66", they hold in box 362, folder 2, correspondence with Plath from 1961-1962, approximately the time period for both the publication of The Colossus, as well as her attempt to secure them as publisher for her novel. The collection does hold their rejection letter to Plath.
In "Series VII. Other Department Files, 1916-96, bulk 1943-68, A. Publicity Department, 1916-96, bulk 1943-96, 1. Publicity Files, 1916-67, bulk 1943-58", they hold in box 1253, folders 17 and 18 "Plath, Sylvia - THE COLOSSUS, Bio., 1961-62" and "Perm., 1961".
In "Series VI. Editorial Department Files, 1930-84, bulk 1948-78, D. Reject Files, 1933-68, bulk 1953-68", they hold in box 1093, folder 4, "Plath, Sylvia, 1961-65".
Additionally, the index to the collection lists that materials relating to Sylvia Plath can be found in the following boxes and folders: 113.1 (Correspondence 1952) , 328.5 (Correspondence 1961), 472.1 (Correspondence 1966), 489.4 (Correspondence 1967), and 962.1 (Series VI. Editorial Department Files, 1930-84, bulk 1948-78, Subseries C. Manuscript Records, 1930-79, bulk 1941-68, boxes 957-963). To understand the listings, 113.1 means box 113, folder 1.