Complex sentence: Tyler-Lewis gives his age as 41 in 1916, and 64 in 1939, both of which suggest he was born in 1875, although she also gives his age as 29 in 1901, suggesting an earlier birth year.
Split into simpler sentences: Tyler-Lewis gives his age as 41 in 1916, and 64 in 1939, both of which suggest he was born in 1875. However, she gives his age as 29 in 1901, suggesting an earlier birth year.