1942-1945  SNHA business on hold due to the war

1946  SNHA resumes business and publishes first book, Crystal Cave

1969  NPS Chief Interpreter, John Palmer, assumes the role of SNHA executive secretary

1973  Staff grows to two full time employees

1976  Publication revenue $68,000

1977  SNHA assists NPS with the operation of the Pear Lake Ski Hut

1978  SNHA takes over the operation of Crystal Cave

1979  Field Seminar program is established with 6 courses

1980  Membership program begins and reaches 200 members

1981  SNHA provides financial support to open Walter Fry Nature Center in Lodgepole

1982  Crystal Cave ticket booth gets constructed

1984  John Palmer publishes the first Seedlings newsletter

1985  Publication revenue $241,000

1986  SNHA provides $10,000 to create the Sequoia and Kings Canyon National Parks Foundation

1987  John Palmer becomes the first executive director

1988  First annual SNHA membership meeting and picnic

1989  SNHA opens office building at Ash Mountain

1990  Publication revenue $395,000 and membership exceeds 600 members

1991  Challenge of the Big Trees is published

1992  Tyler Conrad joins SNHA as second executive director

1993  SNHA starts bear-resistant canister rental program

1994  SNHA hires first visitor center employee

1995  Number of items offered for sale exceeds 700

1996  Mark Tilchen selected as SNHA’s third executive director

1997  SNHA establishes its own website and mail order service

1998  SNHA announces plans to operate the Beetle Rock Education Center

1998  Visitor center staff grows to 8 employees (SNHA hires its first employee for Devils Postpile)

1998  Field seminar program grows to 24 courses

1998  SNHA takes over full operation of the Pear Lake Ski Hut from NPS

2001  First Education Director is hired

2001  Sequoia Field Institute is created

2001  SNHA begins repairs and remodel for the Beetle Rock Education Center

2002  Beetle Rock Education Center opens

2002  SNHA opens new bookstore in Giant Forest Museum

2003  SNHA partners with U.S. Army Corps of Engineers at Lake Kaweah

2003  SFI begins to lead backpacking trips for WildLink

2003  SNHA opens the Sierra Nature Store in Visalia through 2004

2005  Office is enlarged to allow more room for book distribution

2005  SNHA creates a marketing department to promote the association and the parks

2006  SNHA opens Children’s Bookstore as part of the NPS Beetle Rock Family Nature Center

2006  Visitor Center staff increases to 18 employees and membership exceeds 2500

2007  SNHA purchases a Toyota Prius for the National Park Service motor pool

2008  SNHA funds the NPS Junior Ranger program– making it free to park visitors

2009  SNHA and NPS begin a solar generation project at Crystal Cave

2010  Celebrating 70 years helping the parks

2011  Funding is received to host "Sequoia Summer Service Weeks"

2012  Created "Kids Konnect" wholesale department