Statistics for occurrence #1 of “John Swan” in chapter 8 of Lucius R. Paige, History of Cambridge, Massachusetts, 1630-1877, with a genealogical register:

... 70 55. Ri. Jacson 200 56. Willm. Dixon 80 57. George Willowes 60 58. Tho. Chesholme 100 59. Mr. Edmund ffrost 200 60. John Hall 20 61. Edw. Michelson 150 62. And. Belcher 50 63. John Swan 20 64. Phil. Cooke 80 65. ffr. Moore, junior 50 66. Widd: Sill 40 67. Robert Parker 60 68. Willm. Manning 60 69. Richard Hassull 60 70. Nicho. Withe 90 71. Willm. Hamlet 60 72....
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
John Swan 70 38 0 0 0 user votes
John Swann 18 0 2 0 0 user votes
John Swaney 7 0 3 0 0 user votes
John Swan Senr 2 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.