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On the Tapo !

‘On the Tapo’ is on the Horizon!

The Simi Valley Historical Society has been working towards publishing this book for quite some time. For several years now, Pat Havens has been combing through the wealth of information on the topic of the Tapo in the files at the Strathearn Park museum, and writing about what was Simí Valley’s finest agricultural development. A couple hundred photographs have been compiled which illustrate and document Simí Valley in the agricultural era. The result is a 260 page book titled On the Tapo, Simi Valley’s Finest Agricultural Development.

On the Tapo recalls Simí Valley in the agricultural era. It must be difficult for newcomers and younger residents to imagine that not too long ago, agriculture was the most important industry in Simí Valley. Before the housing subdivision boom, groves dominated the Simí Valley landscape. There were orchards which produced apricots, walnuts and oranges, and ranches that produced beets and barley. The Tapo Citrus Association and the Tapo District were the epitome of agriculture in Simí.

Author Patricia Havens remembers when it was apricot harvesting time. Almost everyone in the valley would stop what they were doing, work in the apricot pitting sheds until the harvest and processing was done, and then go back to their regular business. Patricia worked in the pitting sheds, as well as in the Tapo Citrus packing house located in Santa Susana, individually wrapping each orange in a square of tissue paper, before it was packed in a crate.

On the Tapo tells the story of the Tapo Rancho and the Tapo District through photographs, personal accounts, and documents obtained from the Tapo Mutual Water Company and the Tapo Citrus Association. The Tapo Rancho flourished for several decades of the 1800s before pioneers arrived in the valley. Its modern agricultural history, by way of the Tapo Mutual Water Company, lasted fifty years. This book invites you to go back to when the valley of Simí was dotted with orchards and ranches, and visit the area that was known as “the Tapo.”

A very positive thing to come out of 2020 was the completion of the book.  However, because of the pandemic and suspension of fundraising events, The Simi Valley Historical Society needs assistance to publish the book.

Please consider donating to help this book get published!  Once it is published, the proceeds from the sales of ‘On the Tapo’ will further benefit the Simi Valley Historical Society preserve history for future generations by funding projects such as the restoration of the Printz/Powell Colony house!

Help preserve history!

Donate to help publish ‘On the Tapo – Simi Valley’s Finest Agricultural Development!’  You can donate in the below amounts…or any other amount that you’d like!


$1,000 – You will receive a copy of the book, and your name will be listed prominently in ‘On the Tapo’ upon publication

$500 – You will receive a copy of the book, and your name will be listed in ‘On the Tapo’ upon publication

$250 – Your name will be listed in ‘On the Tapo’ upon publication


Any other amount!

We appreciate your help!

Click on the “Donate” button below to donate with PayPal or credit card!

Click on the book to preview a few pages of ‘On the Tapo.’