Un-named and sex unknown. Both twins died as infants.
Birth and Death place guess based on birth and death place of siblings.
According to Find A Grave, "Infant Hall" was the twin sister to Bertha Hall. It does appear, from that site, that Bertha survives and lives for quite a long time.
1910 Census states Hosea and Sarah have been married for 9 years, 1st marriage for each, Sarah was the mother of 4 with 2 living. There is no grave marker or memorial at FAG for twins. The "Twin of Bertha" was b. 6 month after Bertha, that is not a twin. However, there are two babies, Oscar b-d 1902 and Ethel b-d 1904. Looking at 1920 census, there appears to be a missing child/ren between Evert age 9 and Clifton age 5. Children are normally born about 18 mos to 2 years apart.
I'll add to this, for it seem that one of the twins died, while the other lived, but there is little to go on, though the person who commented above makes some very sound points.
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Unnamed Infant is 19 degrees from Vinnie Hoxie, 19 degrees from Frederic Remington, 20 degrees from Pablo Picasso, 22 degrees from Edgar Degas, 21 degrees from Alexander Calder, 25 degrees from Camille Claudel, 18 degrees from John Bacon, 23 degrees from Barbara Hepworth, 26 degrees from Norman Lindsay, 19 degrees from Frances Loring, 21 degrees from Florence Wyle and 14 degrees from Elaine Weatherall on our single family tree. Login to find your connection.