Late in March Ward added to his archive-searching a ghoulish series of rambles about the various ancient cemeteries of the city. The cause appeared later, when it was learned from City Hall clerks that he had probably found an important clue. His quest had suddenly shifted from the grave of Joseph Curwen to that of one Naphthali Field; and his shift was explained when, upon going over the files that he had been over, the investigators actually found a fragmentary record of Curwen's burial which had escaped the general obliteration, and which stated that the curious leaden coffin had been interred "10 ft. S. and 5 Ft. W. of Naphthali Field's grave in y———." The lack of a specified burying ground in the surviving entry greatly complicated the search, and Naphthali Field's grave seemed as elusive as that of Curwen's; but here no systematic effacement had existed, and one might reasonably be expected to stumble on the stone itself even if its record had perished. Hence the rambles—from which St. John's (the former King's) churchyard and the ancient Congregational burying-ground in the midst of Swan Point Cemetery were excluded, since other statistics had shown that the only Naphthali Field (obit. 1729) whose grave could have been meant had been a Baptist.