Emil Rottmeyer is not widely recognized in the mainstream historical records of art and artists. As such, details about his life, including his birth and death years, are not readily available in the standard references and databases concerning art history. This lack of information can suggest a few possibilities: he might be a contemporary or emerging artist whose career is still unfolding, and thus has not yet been extensively documented or critiqued in academic texts or popular media; he could be an artist whose work is known within very specific circles or communities, perhaps related to a niche art form or medium that has not been widely studied or publicized; or, it's possible that Emil Rottmeyer's contributions to art, while potentially valuable, have not been recognized or recorded in the annals of art history to the extent that more prominent figures have been. Given these possibilities, without specific dates of birth or death, or notable historical contributions, it's challenging to provide a detailed biography for Emil Rottmeyer. It's also possible that further research into specialized databases, contemporary art forums, or niche publications might uncover more information about his works, influence, and significance within certain art communities or genres. In the absence of such details, any discussion of Rottmeyer's life and work would be speculative and not grounded in the established scholarship or records that typically inform biographies of more widely recognized artists.