Re: John L. Long 1784 Delaware
I too read History of Cass Co online.
The order of the children in Benjamin Long's will is Lovey[departed; her son Marshall mentioned]; then "My 7 children: Zeno, Joseph, John Jorden, Elizabeth, Eber, Hesse, Armwell" indicates to me that they were not twins.Richard W. Long theorized that, I think, because the date 1784 is on the marker for Eber in the Joe Long Cemetery in Selbyville DE which I have verified. Have you tried to get a picture of John Jordon's stone through find-a-grave to verify that it says 1784?
Looking forward to hearing from you,Marj