A couple of nice Mongolia images I identified:
On the ship “Mongolia“: Chuck Arnold and “Jockey” (dog), ca. 1930′s / photographer Sam Hood

Image by State Library of New South Wales collection
Format: Photograph
Notes: Discover much more detailed information about this photographic collection: acms.sl.nsw.gov.au/staff/item/itemDetailPaged.aspx?itemID…
Search for far more fantastic images in the State Library’s collections: acms.sl.nsw.gov.au/search/SimpleSearch.aspx
From the collection of the State Library of New South Wales www.sl.nsw.gov.au
Arriving in Boston, Thu., April 10th, 1919, Troopship “Mongolia” with boys of the 26th (“Yankee”) Division, the 1st ship to sink a German submarine (LOC)

Image by The Library of Congress
Arriving in Boston, Thu., April 10th, 1919, Troopship "Mongolia" with boys of the 26th ("Yankee") Division, the 1st ship to sink a German submarine
1919 April 10.
1 photographic print : gelatin silver 10 x 42.5 in.
Notes:
Title transcribed from item.
Printed on image: "[Copyright] Commercial Photo Shop, 23 Bridge St., Lowell, Mass., Geo. H. Russell, Manager."
Copyright deposit, Geo. H. Russell, May possibly 26, 1919 (DLC/PP-1919:45950).
Subjects:
United States.–Army.–Infantry Division, 26th–Transportation.
United States.–Army.–Infantry Division, 26th–Folks.
Globe War, 1914-1918–Transportation.
Planet War, 1914-1918–Military demobilizations.
Ships.
United States–Massachusetts–Boston.
Format: Panoramic photographs.
Gelatin silver prints.
Rights Info: No recognized restrictions on publication. No renewal found in Copyright Office.
Repository: Library of Congress, Prints and Photographs Division, Washington, D.C. 20540 USA, hdl.loc.gov/loc.pnp/pp.print
Component Of: Panoramic photographs (Library of Congress) (DLC) 93845487
Far more info about the Panoramic Photographs Collection is available at hdl.loc.gov/loc.pnp/pp.pan
Persistent URL: hdl.loc.gov/loc.pnp/pan.6a33889
Call Number: PAN US MILITARY – Army no. 72