Title: Prosopography
Content: Broughton, T. R. S. 1972. "Senate and Senators of the Roman Republic: The Prosopographical Approach." In Aufstieg und Niedergang der römischen Welt. Vol. 1.1. Edited by Hildegard Temporini, 250–265. Berlin and New York: de Gruyter. ; Cameron, Averil, ed. 2003. Fifty Years of Prosopography: The Later Roman Empire, Byzantium and Beyond. Proceedings of the British Academy 118. Oxford: Oxford Univ. Press. ; Eck, Werner. 2010. "Prosopography." In The Oxford Handbook of Roman Studies, Edited by Barchiesi, Alessandro and Scheidel, Walter. Oxford Handbooks, 146–159. Oxford; New York: Oxford University Pr. ; Fraser, P. M., and Elaine Matthews, eds. 1987–. A Lexicon of Greek Personal Names. Oxford: Clarendon. ; Svorenčík, Andrej. 2018. "The missing link: Prosopography in the history of economics." History of Political Economy 50.3 (2018): 605-613. 
Title: Prosopography of the Later Roman Empire
Content:  as well as identifiable people whose names have been lost, are included with signs indicating the reliability. A project of the British Academy, the work set out with the goal of doing "'...for the later Empire what the Prosopographia Imperii Romani has done for the Principate, to provide the materials for the study of the governing class of the Empire. The majority of the entries will be persons holding official posts or rank together with their families, and the work will not include clerics except in so far as they come into the above categories.'" The volumes were published by Cambridge University Press, and involved many authors and contributors. Arnold Hugh Martin Jones, John Robert Martindale, and John Morris were the principal editors. The Prosopography of the Byzantine World project aims to extend the coverage to the year 1265.
Title: Amal dynasty
Content: Jones, Arnold. Prosopography of the Later Roman Empire, Cambridge at the University Press, 1971. Jones, Arnold. Prosopography of the Later Roman Empire, Cambridge at the University Press, 1971. 
Title: Prosopography of the Later Roman Empire
Content: Volume 1, published on March 2, 1971, comes to 1,176 pages and covers the years from 260 to 395. ; Volume 2, published on October 9, 1980, comes to 1,355 pages and covers the years from 395 to 527. ; Volume 3, published on October 15, 1992, is itself a two-volume boxed set coming to a total of 1,626 pages and covering the years from 527 to 641. Prosopography of the Later Roman Empire (abbreviated as PLRE) is a set of three volumes collectively describing many of the people attested to have lived in the Roman Empire from AD 260, the date of the beginning of Gallienus' sole rule, to 641, the date of the death of Heraclius. Sources cited include histories, literary texts, inscriptions, and miscellaneous written sources. Individuals who are known only from dubious sources (e.g., the Historia 
Title: Sulpicia Dryantilla
Content: Morris, John, Arnold Hugh Martin Jones and John Robert Martindale, The prosopography of the later Roman Empire, Cambridge University Press, 1992, ISBN: 0-521-07233-6, p. 273. 
Title: Florentinus
Content: Jones, A. H. M., Martindale, J. R., Morris, J., The Prosopography of the Later Roman Empire, Vol. I (1971). 
Title: Magister militum
Content: Prosopography of the Later Roman Empire (PLRE), Vols. I-III Prosopography of the Later Roman Empire (PLRE), Vols. I-III 
Title: John Robert Martindale
Content: Prosopography of the Later Roman Empire, ed. with A. H. M. Jones (1904–1970) and John Morris (1913–1977): ; Volume 1, from 260 to 395 AD (Cambridge University Press, 1971, ISBN: 978-0521072335), in two volumes ; Volume 2, from 395 to 527 AD (Cambridge University Press, 1980, ISBN: 978-0521201599), in two volumes ; Volume 3, from 527 to 641 AD (Cambridge University Press, 1992, ISBN: 978-0521201605), in two volumes ; Prosopography of the Byzantine Empire ; Volume 1, from 641 to 847 AD (Ashgate compact disc, 2001, ISBN: 978-0754606130) 
Title: Marcellinus (consul 275)
Content: PIR(2) - Prosopographia imperii Romani; E. Groag et al. (eds.); Berlin; 1933-; ; PLRE - The prosopography of the later Roman Empire; Jones, A.H.M., Martindale, J.R. and Morris, J. (eds.); Cambridge University Press; 1971-1992. 
Title: Prosopographia Imperii Romani
Content:  The Prosopographia Imperii Romani, abbreviated PIR, is a collective historical work to establish the prosopography of high-profile people from the Roman empire. The time period covered extends from the Battle of Actium in 31 BC to the reign of Diocletian. The final volume of the second edition, PIR2, vol. IX, V–Z, appeared in November 2015.

Question: Who is the author of Prosopography of the Later Roman Empire?
Answer: Arnold Hugh Martin Jones.
A. H. M. Jones.
Hugo Jones.
John Morris.
John Robert Morris.