I don't know if this is any help - either the papers mentioned in the literature review or the actual study?
Harrawood, L. K. (2010). Measuring spirituality, religiosity, and denial in individuals working in funeral service to predict death anxiety. OMEGA-Journal of Death and Dying, 60(2), 129-142.
perhaps you have these already, but here are some old and new studies...
Linley, P.A. and Joseph, S., 2005. Positive and negative changes following occupational death exposure. Journal of Traumatic Stress, 18(6), pp.751-758.
Ludlum, K. G., Ludlum, M., & Alsobrook, L. (2014). Job Satisfaction And Media Image For Workers In The Texas Funeral Industry: A Preliminary Investigation. Business Journal for Entrepreneurs, 2014(2).
Schell, B. H., & Zinger, J. T. (1985). An investigation of self-actualization, job satisfaction, and job commitment for Ontario funeral directors. Psychological reports, 57(2), 455-464.
I know I'm adding this a little late, and it may not quite be what you are looking for, as it deals with autopsy attendants, though it very much deals with work satisfaction.