• No. 84 January 18, 1973
  • No. 85 January 25, 1973
  • No. 86 February 1, 1973
  • No. 87 February 8, 1973
  • No. 88 February 15, 1973
  • [No. 89] February 22, 1973
  • No. 90 March 1, 1973
  • No. 91 March 8, 1973
  • No. 92 March 15, 1973
  • No. 93 March 22, 1973
  • No. 94 March 29, 1973
  • No. 95 April 5, 1973
  • [No. 96] April 12, 1973
  • No. 97 April 19, 1973
  • No. 99 May 7, 1973
  • No. 101 May 21, 1973
  • No. 103 June 4, 1973
  • No. 104 June 11, 1973
  • No. 105 June 18, 1973
  • No. 106 June 25, 1973 — From Maryland to Milwaukee
  • No. 108 July 9, 1973
  • No. 109 July 16, 1973
  • No. 110 July 23, 1973
  • No. 111 July 30, 1973
  • No. 112 August 6, 1973
  • No. 114 August 20, 1973
  • No. 116 September 3, 1973
  • No. 117 September 10, 1973
  • No. 118 September 17, 1973
  • No. 120 October 1, 1973
  • No. 122 October 15, 1973
  • No. 123 October 22, 1973
  • No. 124 October 29, 1973
  • No. 123 November 5, 1973
  • No. 126 November 12, 1973
  • No. 127 November 19, 1973
  • No. 128 November 26, 1973
  • No. 129 December 3, 1973