The institutional development of American legislatures, beginning with the first colonial assembly of 1619, has been marked by continuity as well as change. Peverill Squire draws upon a wealth of primary sources to document this institutional history. Beginning with the ways in which colonial assemblies followed the precedents of British institutions, Squire traces the fundamental ways they evolved to become distinct. He next charts the formation of the first state legislatures and the Constitutional Congress, describes the creation of territorial and new state legislatures, and examines the institutionalization of state legislatures in the nineteenth century and their professionalization since 1900.

With his conclusion, Squire discusses the historical trajectory of American legislatures and suggests how they might further develop over the coming decades. While Squire's approach will appeal to historians, his focus on the evolution of rules, procedures, and standing committee systems, as well as member salaries, legislative sessions, staff, and facilities, will be valuable to political scientists and legislative scholars.

The Right of Instruction and Representation in American Legislatures, 1778 to 1900 provides a comprehensive analysis of the role constituent instructions played in American politics for more than a hundred years after its founding. Constituent instructions were more widely issued than previously thought, and members of state legislatures and Congress were more likely to obey them than political scientists and historians have assumed. Peverill Squire expands our understanding of constituent instructions beyond a handful of high-profile cases, through analyses of two unique data sets: one examining more than 5,000 actionable communications (instructions and requests) sent to state legislators by constituents through town meetings, mass meetings, and local representative bodies; the other examines more than 6,600 actionable communications directed by state legislatures to their state’s congressional delegations. He draws the data, examples, and quotes almost entirely from original sources, including government documents such as legislative journals, session laws, town and county records, and newspaper stories, as well as diaries, memoirs, and other contemporary sources. Squire also includes instructions to and from Confederate state legislatures in both data sets. In every respect, the Confederate state legislatures mirrored the legislatures that preceded and followed them.