I am trying to make sense of Goncharov's signature as it appears in this book. Although I am familiar with the cyrillic alphabet in print, I am unable to see Goncharov's name there. Is it really there or is it something else?
Although I am familiar with the cyrillic alphabet in print
Russian handwritten script is quite different from a printed one, just like it's in English.
Is it really there?
Yes, his signature is rather clear. It's "I" followed by a dot (i.e. Ivan) and "Gonchar" with some curly tail (probably "ov" yet merely unreadable as it's normal with signatures) which also provide a closure of the first letter "G".