Name	Lifeboat from Titanic	Lifeboat to Carpathia	Confidence Level
Chevré, Mr Paul Romaine Marie Léonce	7	7	5.00
Maréchal, Mr Pierre	7	7	5.00
Omont, Mr Alfred Fernand	7	7	5.00

The three men issued a joint published account of their shared experiences and apparently were all in the same lifeboat.
[Manchester Guardian, April 20, 1912; their joint account is reproduced in On Board RMS Titanic by Behe, page 356]
     "In our little boat we were frozen with cold, having left the ship without overcoats or rugs. We shouted from time to time to attract the attention of the other boats, but obtained no reply. With the same object a German baron who was with us fired off all the cartridges in his revolver."

In a deposition given to the British Inquiry, Alfred Omont said;
   "I was rowing. We had about 22 women on board. Marechal my friend was on board, and I did not recognize him till the morning."

We know that the German baron, who was in #7, was Alfred Nourney, who was booked to travel 2nd Class as the Baron von Drachstedt.  This shows that all three men were definitely in #7.