Heller was born in
Danville, Pennsylvania. In 1892, Heller received a
Bachelor of Arts degree from
Franklin & Marshall College. In 1897, he received a
Master's degree in Botany from
Franklin & Marshall College. Starting with 1892, he issued at least 14 specimen series with printed labels which resemble
exsiccatae, among others
Plants of Porto Rico and
Plants of the Hawaiian Islands. Emily Gertrude Halbach (
Emily Gertrude Heller) curated and co-edited at least eight of these series, e.g.,
Flora of Central Pennsylvania. == Career ==