| Index Entry | Concert, in Boston, announced by Joan, Mr, postponed |
| Location | Boston |
| Citation | MS-B.771.013 7 Mar 1771:14 (1/1) Mr. Joan's Concert, which was to be this evening, is postponed till Thursday the 21st instant. |
| Generic Title | Massachusetts Spy-Boston |
| Date | 1771.03.07 |
| Publisher | Thomas, I. |
| City, State | Boston, MA |
| Year | 1771 |
| Bibliography | B0021447 |