Mexican-Americans
To make a contribution means to provide something of value, support, or assistance to a cause, project, group, or individual. This can be in the form of time, money, resources, expertise, or effort with the intention of helping or improving something. Making a contribution often involves sharing one's skills, knowledge, or resources to make a positive impact on others or a particular situation.
in what way do you think you can make a contribution to our organisation
He founded the Boy Scouts, this group has done way too many hours of service to count.
The immigrant claims that he has been offered employment as a migrant field worker.
Native Americans.
To provide an accurate answer, I would need to know who "they" refers to in your question. Please specify the individual or group you are asking about, and I can summarize their contributions accordingly.
Describe what major contribution you feel you could make?
No contribution was important from Sosa.
Jacob Riis
Your choice
he made a contribution