Hello, I'm new here and I have recently acquired the above mentioned Silver Certificates, and was wondering approximately what they would be worth. Any help at all would be greatly appreciated! Thanks!

1928 A $1 bill:
N.O. Woods, Treasurer
A. W. Mellon, Sec'y of Treasury
Blue seal
Seerial #: I 50637186 A (in blue)
F 362
Under Washington's pic: "One Silver Dollar payable to the bearer on demand"
Obverse:
ONE in lg. caps. With ONE DOLLAR running through the center of it

1935 A $1 Silver Certificate:
M.A. (unsure) Treasurer
Henry Morgenthau, Jr. Sec'y of Treasury
Red seal
Serial #: S 53351114 C (in red)
B 5473
Stamped Hawaii
Obverse:
Close to the current $1 bill, but as HAWAII stamped through the back

1957 $1 Silver Certificate:
Gary (?) Belton Priest, Treasurer
Robert B. Anderson, Sec'y of Treasury
Blue Seal
Serial #: S 02741226 A (in blue)
B 475
Obverse: same as 1935 series

I also have a glass negative with a pic of my dad in his navy whites... the envelope is stamped on the inside with Mori Photographic Studio, Front of Central Post Office, and Japanese characters. The front of the envelope is stamped with Japanese characters and 251. Can anyone help me out with this as well?

Hauntedwolf - Here is a little extra about the ( 1935A silver certificate) you have in question , FIRST.
AS an economic defense precaution against Japanese invasion and occupatioon of HAWAII, specially marked US currency was issued there in JULY of 1942, to replace other types in circulation. Distinguished by brown seal and serial numbers , and by " HAWAII " overprints on face and back, such notes could have been declared worthlessin the event large numbers of them were captured.
The 1$ notes used as emergency currency were SILVER CERTIFICATES OF series 1935A , while $5s$10s, and $20s were overprinted examples of SAN FRANCISCO -DISTRIC FEDERAL RESERVE NOTES : The $5s in 1934 series and 34A , the $10s in series 34A only, and the $20s in series 34 a and 34A , All notes bear the signatures of Julian - Morgenthau combination.
By late OCTOBER, 1944 the emergency monetary conditions were declared ended, and normal currency returned to use in Hawaii and the HAWAII overprinted notes went on to do duty during the occupation of formerly Japanese - held islands in the PACIFIC . Also certificates bearing the same signatures and dates ( 1935A series ) WAS printed on experimental Paper two types , NORMAL & AND NEW special paper. Notes on the special paper were overprinted with a large RED " S " in the lower right bottom corner, and ones printed on the reg paper was printed swame way but with a large RED "
"R" placed in the same place . There was EXACTLY 1,184,000 of each type printedand released into circulation
First of all -none were printed with a red seal, yours has probably fadded over the years and looks red - but they were printed with BROWN SEALS AND SERIAL NUMBERS . SIGNATURES on all were ( JULLIAN & MORGENTHAU.
VALUE WILL DEPEND ON THE CONDITION OF THEM < BUT HERE IS A FEW VALUES OF noted CONDITIONS OUT OF THE 2008 RED BOOK ON PAPER MONEY
1935A- FINE $40.00:: XF- $70.00 CH CU(63) - $375.00 ;; GEM CU - $1000.00
1935A *- $ 275.00 : Xf $550.00 : CH CU (63) - $2750.00 : GEM CU _ $ 3875.00
Good luck & GOD BLESS :: F.B.E.

Hauntedwolf- Here are the other two VALUES of the silver certificates you have! - 19578 SIGNATURES YOU HAVE ARE RIGHT;;;
1957- FINE :: Xfine:: CH CU (63) GEM CU (65)
$2.50 $ 4.00 $ 10.00 $ 15.00
1957* $ 3.00 $ 8.00 $ 14.00 $ 16.00
( NOTE the Star on all three note values )
I hope I have helped you with my answers , If not just come back on and Ill see what's wrong. There is already a site post on here that gives all to look for on how to grade paper money ( 1-9 HOW do you grade the c ondition of paper money ) Have a good day and GOD BLESS ::: F.B.E.

Couldn't spread the reputation so soon Flying Blue Eagle. But, just wanted to say excellent research and answers that you have given above! I'm glad that you are a member of this site! Truly, you are a boon to it! :)