Who are those people?
From Left to Right,

Srinivasa Ramanujan-
He was one of India's greatest mathematical geniuses. He made substantial contributions 
to the analytical theory of numbers and worked on elliptic functions, continued fractions,
and infinite series. From C.P. Snow:
   "Hardy used to visit him, as he lay dying in hospital at Putney. It was on one of those
 visits that there happened the incident of the taxicab number. Hardy had gone out to
 Putney by taxi, as usual his chosen method of conveyance. He went into the room where 
Ramanujan was lying. Hardy, always inept about introducing a conversation, said, probably
 without a greeting, and certainly as his first remark: 'I thought the number of my 
taxicab was 1729. It seemed to me rather a dull number.' To which Ramanujan replied: 
'No, Hardy! No, Hardy! It is a very interesting number. It is the smallest number expressible
 as the sum of two cubes in two different ways."

Ramanujan received many honors in England. He was elected as a fellow of Trinity College,
 and then became the first Indian elected to the Royal Society of Mathematicians. 


William Massey-
During Princeton University's inclusive period, William Massey enrolled and obtained 
a B.S. in Mathematics. From there he went to Stanford University for the Ph.D. and 
to industry, but his location in the Mathematics Department of Lucent Technologies 
has given him the opportunity to publish an average of 2.5 papers a year. In addition 
to the application of many papers in Queueing Theory and Stochastic Processes to
 problems in the Modelling of Telecommunication Systems, Massey, most importantly, 
has been involved with the mentoring African American students of Mathematics. Those 
who pay attention do very well; one of these is Arlie Petters. Massey is a co-founder 
of CAARMS, the annual Conference for African Americans  Researchers in the Mathematical 
Sciences. In 2001, Massey became the first tenured African American Mathematician at 
an Ivy League Univrsity. He is Full Professor in Princeton University's department 
of Operations Research and Financial Engineering.

Grace Murray Hopper, Ph.D. (Admiral, US Navy)
Rear Admiral Dr. Grace Murray Hopper was a remarkable woman who grandly rose to the
 challenges of programming the first computers. During her lifetime as a leader in 
the field of software development concepts, she contributed to the transition from 
primitive programming techniques to the use of sophisticated compilers. She believed 
that "we've always done it that way" was not necessarily a good reason to continue 
to do so. Grace Brewster Murray was born on December 9, 1906 in New York City. In 
1928 she graduated from Vassar College with a BA in mathematics and physics and 
joined the Vassar faculty. While an instructor at Vassar, she continued her studies 
in mathematics at Yale University, where she earned an MA in 1930 and a PhD in 1934.
 She was one of four women in a doctoral program of ten students, and her doctorate 
in mathematics was a rare accomplishment in its day.