The cache is NOT at the posted coordinates. You will need your own writing utensil.
You will get the actual coordinates from your answers to the Ad Lab, good luck
Luther Burbank, an American botanist, horticulturist and pioneer in agricultural science made this farm his "home", actually I'd say his "life". After running out of room in Santa Rosa where his home was he bought this tract of land so he could continue his experiments in peace and quiet. Here in Sonoma County, for 55 years, he developed more than 800 strains and varieties of plants.
He was reared on a farm and received little more than a high school education. He was the 13th of 15 children. He learned his love of nature from his mother who tended a beautiful garden. In this garden he would plant wildflower seeds. Luther bought himself a plot of land early in life with some inheritance money and grew vegetables for market. After discovering a "seed ball" in one of his potato plants he produced/grew the russet Burbank potato. A smash hit for the world. It has become the world's predominant potato in food processing. Think of those french fries you eat at McDonalds, thank Mr. Burbank. He sold the rights to this potato for $150 and decided to move West.
In 1875 he moved to California not only because three of his brothers lived there but he also felt California's climate and conditions were better for his horticultural work. He bought 4 acres in Santa Rosa and started a nursery business but that was not his main interest. He actually wanted to try to improve plants and make them more useful for humankind. He was inspired by Charles Darwin's 'The Variation of Animals and Plants Under Domestication'. Darwin's theory of Evolution was still controversial then, but Burbank seized on the idea. He wanted to speed up the process of evolution in plants so he selected the best plants, the strongest plants, the most desirable plants, etc and crosspollinated and saved only the best of the seedlings. He kept on improving the strains.
Luther Burbank met his second wife, Elizabeth Waters a manuscript editor, as she assisted him in editing his field notes. Together they produced his 12 book series "Luther Burbank His Methods and Discoveries and Their Practical Application". She would be the one to chronicle all his experiments but he was the horticulturalist so once he died the experiment essentially died with him. Prior to his death, in 1926, he told his wife: "If anything happens to me, you will have to dispose of the business and the work, because you can't go on with it. There aren't a dozen organizations in the world that are equipped to go forward with it; of them all, there is really only one that I think of that could make the most of it." That was the Stark Bro's Nurseries and Orchards Co.. He actually left everything to his wife and then she over time sold the appropriate entities as she saw fit mainly to the Stark Bros company.
Over time the acreage out here was neglected and overgrown by weeds and bushes and poison oak and berries. In 1973 Elizabeth sold the property to the Sebastopol Area Housing Corporation to build housing for Seniors and persons of low income. Three and a half acres was set aside as the Experiment Farm. In the late 1970's the cottage was put on the National Register of Historic Places. The city of Sebastopol now has title to the land and the Western Sonoma County Historical Society leases the farm.
The farm is a city park that is maintained by volunteers. Please be respectful of the property. It is a valuable and historical site. Please stay on the paths provided. You do NOT need to go off path for any of your answers or this bonus cache. The park is open dawn to dusk every day of the year. Volunteers are here certain days, check the website wschs.org/farm/ along with the possibility of a docent tour. Also, if you are so inclined (as I am) you can purchase some plants at the barn.
From the website you can also get to the self-guided tour of the farm if you can't find a paper one. From what I have heard there will soon be a video tour available with a QR reader.
I hope you enjoy the walk through this peaceful garden/farm as much as we have. Bring the family, bring a picnic lunch. Sit in the shade of the trees of the WORLD'S MOST FAMOUS GARDENER and just imagine what it may have looked like a hundred years ago.
To get the proper coordinates put in the appropriate words, in alphabetical order, no spaces, into certitude and you will be on your way!!
You can validate your puzzle solution with certitude.