i belive none of it
Believe it (or at least most of it), James. Except for the Rio grounding and the Baltic fire, I have copies of contemporary New York newspaper accounts confirming all of these incidents and that Smith was in command at the time.
Republic (1) running aground at New York plus 3 crew were killed in a boiler accident on the same day.
27 January 1889: Approaching New York on her final White Star sailing, Republic I ran aground off Sandy Hook and was refloated five hours later. After she docked a 9 foot (2.74 m) length of 38 inch (0.97m) boiler flue exploded, scalding ten crew members, three of them fatally. Republic's captain, Edward J. Smith, reported that damage to the ship was slight. (Sources: The New-York Times, 28 January 1889; Eaton & Haas' Falling Star.)
in 1890 he ran a ship aground of Rio De Janeiro.
I have not yet found any contemporary reference to this incident, although I also haven't looked too hard for this one. It is, though, also referred to in Eaton & Haas' Falling Star; they identify the ship as Coptic, which Smith commanded for one voyage in 1890. Maybe it's time for a research trip to Brazil. ;-)
in 1901 aboard the Majestic
7 August 1901: The second of two fires in a linen closet on Majestic I forced breakfasting saloon passengers (including John D. Rockefeller, Jr.) to flee to the promenade deck until the smoke cleared. No injuries were reported, nor was there any serious damage done to the ship. Smith was Majestic's commander at the time. (Source: The New York Times, 8 August 1901.)
and 1906 aboard the Baltic they expirenced onboard fires.
Eaton & Haas' Falling Star mentions a 1906 fire on Baltic in Liverpool, but doesn't mention Smith. He was, though, Baltic's commander that year, moving on to Adriatic when she entered service in 1907.
he ran the Adriatic aground in New York.
4 November 1909: Arriving at New York with 881 passengers on board, Adriatic II went aground at 3:20 a.m. on a sand bank at the entrance to the Ambrose Channel. She was freed, undamaged, at 8:10 a.m. due to the combined effect of a rising tide and the discharge of water ballast. Adriatic's commander was Capt. Edward J. Smith. (Sources: New York Herald, 5 November 1909; The Evening Post (New York), 4 November 1909.)
he nearly crushed a tug in New York and had the Hawke collision.
The tug collision on
Olympic's maiden arrival in New York and the Olympic-Hawke collision are well documented, as is the fact that Smith was Olympic's captain on both occasions.
the Germanic incident is not in Marriots book
Possibly beacuse it had nothing to do with Smith; Germanic's commander was Edward R. McKinstry. Sources: The New York Times and New-York Daily Tribune for various dates in February 1899.
and i found it in Titanic Destination Disater.
It's also described in great detail in Eaton & Haas' Falling Star.
Mind you, I'm drawing no conclusions as to Smith's ability as a seaman from any of these incidents; I know that there are strong arguments to be made that some---perhaps all---were not attributable to his personal skills. However, they DID occur.