Author Albert Hazen Wright (1879–1970) https://en.wikipedia.org/wiki/Albert_Hazen_Wright
Description
English: Leopard Frog (Rana Pipens). Desirable Species
Subject: Frogs, Rana
Tag: Amphibians
Date 1919
Source/Photographer
English: Wright, A. H. (1919) Frogs : Their Natural History and Utilization, Report of the United States Commissioner of Fisheries, 1919, Washington, DC: Government Printing Office
Source: https://commons.wikimedia.org/wiki/File:FMIB_34921_Leopard_Frog_(Rana_Pipens)_Desirable_Species.jpeg

The northern leopard frog (Lithobates pipiens or Rana pipiens) is a species of leopard frog from the true frog family, native to parts of Canada and United States. It is the state amphibian of Minnesota and Vermont.