Scope and Contents From the Sub-Series: This subseries comprises materials relating to William McPherson’s involvement in the avocado industry. All but one folder consists of correspondence addressed to McPherson, both as a private individual--including receipts and accounts of McPherson’s participation in the California Avocado Growers Exchange / Calavo Growers of California--and in McPherson’s capacity as Secretary of the California Avocado Association in 1927/1928 - 1929/1930, and as Secretary of District 3 of the Calavo...