Women's 100 Back World Record Progressions;

From Swimming World's site on the day that Natalie C set a new world record:

Progressions
1:36.7 Doris Hart ENG Gothenburg 7/6/1923
1:35.0 J. Mullerova TCH Prague 7/29/1923
1:26.6 Sybil Bauer USA Newark 8/8/1923
1:22.4 Sybil Bauer USA Miami 1/6/1924
1:22.0 Willy van den Turk NETH Rotterdam 7/10/1927
1:21.6 Marie Braun NETH Amsterdam 8/11/1928
1:21.4 Marie Braun NETH Brussels 4/1/1921
1:21.0 Marie Braun NETH Gravenhage 11/27/1929
1:20.6 Bonnie Mealing AUS Sydney 2/27/1930
1:18.6 Phyllis Harding GBR Wallasey 5/30/1932
1:18.2 Eleanor Holm USA Jones Beach 7/16/1932
1:16.8 Rie Mastenbroek NETH Dusseldorf 11/25/1934
1:16.3 Eleanor Holm USA Chicago 1/15/1935
1:15.8 Rie Mastenbroek NETH Amsterdam 2/27/1936
1:15.7 Dina Senff NETH Copenhagen 9/8/1936
1:15.4 Dina Senff NETH Copenhagen 9/10/1936
1:13.6 Dina Senff NETH Dusseldorf 10/25/1936
1:13.5 Cor Knit NETH Copenhagen 11/1/1938
1:13.2 Iet van Feggelen NETH Amsterdam 11/10/1938
1:13.0 Iet van Feggelen NETH Gravenhage 11/12/1938
1:12.9 Iet van Feggelen NETH Antwerp 11/26/1938
1:10.9^ Cor Knit NETH Rotterdam 9/22/1939
1:12.9 Judith Grinham GBR Melborune 12/5/1956
1:12.5y Phillipa Gould NZL Auckland 3/12/1958
1:12.4y Margaret Edwards GBR Cardiff 4/19/1958
1:12.3 Ria von Velson HOL Nijmegen 7/20/1958
1:11.9y Judith Grinham GBR Cardiff 7/23/1958
1:11.7 Ria van Velson NED Waalwijk 7/26/1959
1:11.4 Carin Cone USA Chicago 11/6/1959
1:11.0 Ria von Velson NED Leipzig 6/12/1960
1:10.9 Ria von Velson NED Maastricht 7/10/1960
1:10.1 Lynn Burke USA Indianapolis 7/17/1960
1:10.0 Lynn Burke USA Detroit 8/4/1960
1:09.2 Lynn Burke USA Detroit 8/5/1960
1:09.0 Lynn Burke USA Rome 9/2/1960
1:08.9 Donna de Varona USA Los Angeles 7/28/1963
1:08.6 Christine Caron FRA Paris 6/14/1964
1:08.3 Virginia Duenkel USA Los Angeles 9/28/1964
1:07.7 Catherine Ferguson USA Tokyo 10/14/1964
1:07.4 Ann Fairlie SAF Beziers 7/23/1966
1:07.3 Elaine Tanner CAN Winnipeg 7/27/1967
1:07.1 Elaine Tanner CAN Winnipeg 7/30/1967
1:06.7 Karen Muir SAF Kimberley 1/30/1968
1:06.4 Karen Muir SAF Paris 4/6/1968
1:06.2 Kaye Hall USA Mexico City 10/23/1968
1:05.6 Karen Muir SAF Utrecht 7/6/1969
1:05.39 Ulrike Richter GDR Utrecht 8/18/1973
1:04.99r Ulrike Richter GDR Belgrade 9/4/1973
1:04.78 Gwendolyn Cook CAN Christchurch 1/31/1974
1:04.43 Ulrike Richter GDR Rostock 7/8/1974
1:04.09 Ulrike Richter GDR Vienna 8/22/1974
1:03.30 Ulrike Richter GDR Vienna 8/23/1974
1:02.98 Ulrike Richter GDR Concord 9/1/1974
1:02.60 Ulrike Richter GDR Tallin 3/14/1976
1:01.62 Kornelia Ender GDR Berlin 6/3/1976
1:01.51 Ulrike Richter GDR Berlin 6/5/1976
1:01.51e Rica Reinisch GDR Moscow 7/20/1980
1:01.50 Rica Reinisch GDR Moscow 7/22/1980
1:00.86 Rica Reinisch GDR Moscow 7/23/1980
1:00.59r Ina Kleber GDR Moscow 8/24/1984
1:00.31^ Krisztina Egerszegi HUN Athens 8/22/1991
1:00.16r Cihong He CHN Rome 9/10/1994
59.58 Natalie Coughlin USA Ft. Lauderdale 8/13/2002
59.44 Natalie Coughlin USA Melbourne 3/27/2007
59.21 Natalie Coughlin USA Columbia 2/17/2008