Theresa, I hope you have followed all the responses, including the ps from Phyllis.
At the findagrave.com site I just discovered the death and burial information for Lena (Friday) Miller.Her name was actually Madaline.Lena would have been a nickname.
She is shown as Madaline Friday Miller, spouse, William Miller.The dates were born 1852, died 1917.William's dates are 1852-1928.They are buried in the Trinity United Church Cemetery, Warren, Somerset Co. NJ.
The names Martha and Madaline sound more like names for twins."Lena" died just one year after her twin.