Nothmann Family Collection, 1978 ascribes the surname Heller to Samuel and his children. For reasons discussed on Amanda's page, I believe that this is a mis-transcription of Adler.

Nothmann Family Collection, 1978 gives Samuel's date of birth as 13/11/1843 in "Posterndorf". A Samuel Adler, born on 13/11/1848 in Pless to parents subsequently living in Pilgramsdorf, married the year after Henriette's untimely death. I assume these are the same person. The parents shown here for Samuel are taken from his 1878 marriage certificate.