How much did henry flagler make? His wealth was primarily derived from his investments in standard oil and florida’s infrastructure. During the 1890s he built a chain of luxury hotels along the rail line as well as in nassau, in the bahama islands. · henry flagler, an american industrialist and railroad tycoon, amassed a colossal fortune during his lifetime. How did henry flagler make his fortune? · henry flagler s involvement in the railroad industry was instrumental in the accumulation of his vast net worth. He was also a key figure in the development of the atlantic coast of florida and founder of the florida east coast railway. Henry morrison flagler ( – ) was an american industrialist and a founder of standard oil, which was first based in ohio. Who was henry morrison flagler? · by the time of his death in 1913, henry flagler had accumulated almost unimaginable wealth from his business ventures. Who was henry flagler? · at the time of his death in 1913, flagler ’s estate was estimated at $60 million, equivalent to approximately $1. 6 billion today. That is the same as around $1. 6. In 1883 flagler visited florida and three years later purchased several railway lines that he combined as the florida east coast railway. His investments in the florida east coast railway played a pivotal role in the development of florida as a popular tourist destination and a thriving economic hub. His net worth, estimated at around $100 million at the time of his death in 1913, highlights his immense wealth and successful ventures. What was henry flagler s net worth ? Flaglers estate was worth an estimated $100 million dollars, equivalent to more than $12. 5 billion dollars today. Henry flagler was an american industrialist who had a net worth of $60 million at the time of his death in 1913.