My post 817 in this forum tells how to search the J. A. Comstock book on line. It says:
"Family 1543 5752. ELIJAH9 THOMAS COMSTOCK (Ephraim,8 William,7 Daniel,6 Daniel,5 Daniel,4 Samuel,3 Samuel,2 William1) born Dec. 22, 1838; date and place of his death not of record; married May 17, 1859, Maranda Jane Brown, b. McDonald Co., Mo.
Elijah T. Comstock represented Crawford County, Ark., in the State Legislature. He resided (1895) in Barcelona, Ark."
It goes on then to give their nine children. The only direct bearing this has on your question is that Dr. Comstock gives the name as "Maranda" rather than "Miranda". My guess is that her records could be under either spelling.
Another possible reference: http://freepages.genealogy.rootsweb.com/~katy/brownsc/d325.htmlhttp://freepages.genealogy.rootsweb.com/~katy/brownsc/d325.html says ". Maranda J. Comstock and her husband Thomas were also listed in the deed but a margin note states that their names were erased. Another deed follows, dated 30 May 1879, from Miranda and Thomas Comstock of Crawford County, Arkansas, to Laura I. Brown, the same tracts of land for $1. " (Both spellings in the same paragraph.) This makes it appear that Elijah Thomas Comstock may have used the name Thomas Comstock. To sell the land so cheap makes it look as if Laura Brown is a relative of Miranda Brown Comstock.
"23. MIRANDA JANE BROWN (271) was born on 12 Jun 1842 in Arkansas.(36) (272)(273) (274)(275) (276) 1870 Census gives her birthplace as Arkansas, but this is curious. Her parents married in St. Francois County MO and her father died at Rocky Comfort in McDonald County MO - don't know when they moved, but all the rest of their children were born in Missouri. Both 1850 & 1860 Censuses also show Miranda as born in Arkansas. . . . Giving title to her niece, Laura Isbell Brown of Barry Co MO, for $1, a parcel of land in McDonald Co that is no doubt Miranda's, inherited from her father. "