Spoon River Community College Where Can I Find The Original Serialized Publication Dates Of Spoon River Anthology?

Where can I find the original serialized publication dates of Spoon River Anthology? - spoon river community college

"Spoon River Anthology by Edgar Lee Masters, was published in 1916 in book form, but only serialized over 6 months in the weekly newspaper" El Espejo Reedy. I'm trying to find the original poem clusters (called strings) and the data were published in 1914-15.