Harvard is probably a good choice in the search for books on Anne Bradstreet --not only is Harvard large, but one would expect 'New England writers' to be well represented. A basic KW search (here a compound: KW BRADSTREET AND KW ANNE) yields the following 41 books:
HU INDEX: LIST OF ITEMS RETRIEVED            41 items retrieved by your search:
FIND KW BRADSTREET AND KW ANNE
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SINFUL SELF SAINTLY SELF THE PURITAN EXPERIENCE OF POETRY
   1 hammond jeffrey/ 1993  bks
 
SHE THOUGH DEAD WILL VINDICATE OUR WRONG ANNE BRADSTREETS ELEGIES ON QUEEN
ELIZABETH AND SIR PHILIP SIDNEY
   2 walley alex/ 1991  bks
 
MERIDIAN ANTHOLOGY OF EARLY AMERICAN WOMEN WRITERS FROM ANNE BRADSTREET TO
LOUISA MAY ALCOTT 1650 1865
   3 rogers katharine m/ 1991  bks
 
ANNE BRADSTREET REVISITED
   4 rosenmeier rosamond 1928/ 1991  bks
 
MODERN CHRISTIAN SPIRITUALITY METHODOLOGICAL AND HISTORICAL ESSAYS
   5 hanson bradley/ 1990  bks

ANNE BRADSTREET A REFERENCE GUIDE
   6 dolle raymond f/ 1990  bks
 
EARLY NEW ENGLAND MEDITATIVE POETRY ANNE BRADSTREET AND EDWARD TAYLOR
   7 hambrick stowe charles e/ 1988  bks
 
AMERICAN TRIPTYCH ANNE BRADSTREET EMILY DICKINSON ADRIENNE RICH
   8 martin wendy/ 1984  bks
 
CRITICAL ESSAYS ON ANNE BRADSTREET
   9 stanford ann/ 1983  bks
 
WOMANS INNER WORLD SELECTED POETRY AND PROSE OF ANNE BRADSTREET
  10 bradstreet anne 1612 1672/ 1982  bks
 
STUDIEN ZU UMFANG UND BEDEUTUNG DER BIBLISCHEN BEZUGE IM WERK ANNE BRADSTREETS
  11 peter hans gernot 1942/ 1981  bks
 
WORKS OF ANNE BRADSTREET
  12 bradstreet anne 1612 1672/ 1981  bks
 
COMPLETE WORKS OF ANNE BRADSTREET
  13 bradstreet anne 1612 1672/ 1981  bks
 
PICTORIAL HISTORY OF WOMEN IN AMERICA
  14 warren ruth/ 1975  bks
 
ANNE BRADSTREET THE WORLDLY PURITAN AN INTRODUCTION TO HER POETRY
  15 stanford ann/ 1975  bks
 
PAPERS 1975
  16 hamlin joanne/ 1975  mss
 
WHAT GOD IS LIKE TO HIM I SERVE UNACCOMPANIED MIXED CHORUS
  17 sims ezra 1928/ 1974  sco
 
AMERICAN PURITAN IMAGINATION ESSAYS IN REVALUATION
  18 bercovitch sacvan/ 1974  bks
 
MAJOR WRITERS OF EARLY AMERICAN LITERATURE
  19 emerson everett h 1925/ 1972  bks
 
EVIDENCE OF THINGS NOT SEEN PERSPECTIVES ON HISTORY IN THE WRITINGS OF ANNE
BRADSTREET THOREAU AND WALLACE STEVENS
  20 rosenmeier rosamond rauch/ 1971  bks
 
ANNE BRADSTREET THE TENTH MUSE
  21 white elizabeth wade/ 1971  bks
 
POEMS OF ANNE BRADSTREET
  22 bradstreet anne 1612 1672/ 1969  bks
 
WORKS OF ANNE BRADSTREET
  23 bradstreet anne 1612 1672/ 1967  bks
 
TENTH MUSE 1650 AND FROM THE MANUSCRIPTS MEDITATIONS DIVINE AND MORALL TOGETHER
WITH LETTERS AND OCCASIONAL PIECES
  24 bradstreet anne 1612 1672/ 1965  bks
 
ANNE BRADSTREET
  25 piercy josephine ketcham/ 1965  bks
 
ANNE BRADSTREET AND THE YOKE OF ORTHODOXY
  26 abbott samuel bassett/ 1963  bks
 
WORKS OF ANNE BRADSTREET IN PROSE AND VERSE
  27 bradstreet anne 1612 1672/ 1962  bks
 
HOMAGE TO MISTRESS BRADSTREET POEM
  28 berryman john 1914 1972/ 1956  bks
 
ANNE BRADSTREET A CRITICAL ESTIMATE OF HER LIFE AND WORKS
  29 oest george f/ 1933  bks
 
WORKS OF ANNE BRADSTREET IN PROSE AND VERSE
  30 bradstreet anne 1612 1672/ 1932  bks
 
WORKS
  31 bradstreet anne 1612 1672/ 1932  bks
 
ACCOUNT OF ANNE BRADSTREET THE PURITAN POETESS AND KINDRED TOPICS
  32 caldwell luther 1822 1903/ 1898  bks
 
POEMS OF MRS ANNE BRADSTREET 1612 1672 TOGETHER WITH HER PROSE REMAINS
  33 bradstreet anne 1612 1672/ 1897  bks
  34 bradstreet anne 1612 1672/ 1897  bks
 
ANNE BRADSTREET AND HER TIME
  35 campbell helen stuart 1839 1918/ 1891  bks
  36 campbell helen stuart 1839 1918/ 1891  bks
 
WORKS OF ANNE BRADSTREET IN PROSE AND VERSE
  37 bradstreet anne 1612 1672/ 1867  bks

WORKS OF ANNE BRADSTREET IN PROSE AND VERSE
  38 bradstreet anne 1612 1672/ 1867  bks
 
SEVERAL POEMS COMPILED WITH GREAT VARIETY OF WIT AND LEARNING FULL OF DELIGHT
WHEREIN ESPECIALLY IS CONTAINED A COMPLEAT DISCOURSE AND DESCRIPTION OF THE FOUR
  39 bradstreet anne 1612 1672/ 1758  bks
  40 bradstreet anne 1612 1672/ 1678  bks
  41 bradstreet anne 1612 1672/ 1678  bks
Several of these are not found in W&:L's collection, but MIGHT be very worthwhile (or even essential) to someone doing extended research on Anne Bradstreet; these could be ordered via InterLibrary Loan:

HU LONG DISPLAY   page 1 of 1      Item 6 of 41 retrieved by your search:
FIND KW BRADSTREET AND KW ANNE
------------------------------------------------------HU HOLLIS# AJA2973 /bks
        AUTHOR: Dolle, Raymond F.
         TITLE: Anne Bradstreet, a reference guide / Raymond F. Dolle.
     PUB. INFO: Boston : G.K. Hall, 1990.
   DESCRIPTION: xxxviii, 145 p. ; 24 cm.
        SERIES: A Reference guide to literature
         NOTES: Includes index.
          ISBN: 0816189749
 
      SUBJECTS: *S1 Bradstreet, Anne, 1612?-1672--Bibliography.
       AUTHORS: *A1 Dolle, Raymond F.


         TITLE: Early New England meditative poetry : Anne Bradstreet and 
                Edward Taylor / edited by Charles E. Hambrick-Stowe.
     PUB. INFO: New York : Paulist Press, c1988.
   DESCRIPTION: vi, 270 p. ; 24 cm.
        SERIES: Sources of American spirituality
         NOTES: Poems by Anne Bradstreet and Edward Taylor.
                Includes indexes.
          ISBN: 0809104164 :
 
      SUBJECTS: *S1 Christian poetry, American--New England.
                *S2 American poetry--Puritan authors.
                *S3 American poetry--Colonial period, ca. 1600-1775.
                *S4 Spiritual life--Poetry.
       AUTHORS: *A1 Hambrick-Stowe, Charles E.
                *A2 Bradstreet, Anne, 1612?-1672.
                *A3 Taylor, Edward, 1642-1729.


        AUTHOR: Bradstreet, Anne, 1612?-1672.
         TITLE: A woman's inner world : selected poetry and prose of Anne
                  Bradstreet / edited with an introduction by Adelaide P. 
                  Amore.
     PUB. INFO: Washington, D.C. : University Press of America, c1982.
   DESCRIPTION: xli, 109 p. ; 23 cm.
         NOTES: Includes bibliographies.
          ISBN: 081912639X : ; 0819126403 (pbk.) :
 KEYWORD SUBJ.: Poetry.
                American literature--Colonial period, ca. 1600-1775.
 
       AUTHORS: *A1 Bradstreet, Anne, 1612?-1672.
                *A2 Amore, Adelaide P.